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-v2-20-10/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-bg512142.opb
MD5SUMbad364b24a8c9bb1cd282751f54245c6
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 9600
Biggest coefficient in the objective function 5368709120000
Number of bits for the biggest coefficient in the objective function 43
Sum of the numbers in the objective function 773893279252632
Number of bits of the sum of numbers in the objective function 50
Biggest number in a constraint 5368709120000
Number of bits of the biggest number in a constraint 43
Biggest sum of numbers in a constraint 773893279252632
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1210.55
Number of variables16800
Total number of constraints1307
Number of constraints which are clauses11
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1296
Minimum length of a constraint1
Maximum length of a constraint183

Trace number 41294 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-09 10:06:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=29365 boxname=wulflinc6 idbench=1149 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  bad364b24a8c9bb1cd282751f54245c6  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-bg512142.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-bg512142.opb
IDLAUNCH: 29365
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        502452 kB
Buffers:         24228 kB
Cached:         486064 kB
SwapCached:        932 kB
Active:          33020 kB
Inactive:       479360 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        502200 kB
SwapTotal:     2097136 kB
SwapFree:      2095216 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14092 kB
Committed_AS:    63736 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-09 10:07:23 (client local time) WITH STATUS 20 IN 29.8095 SECONDS
stats: 29365 7 29.8095 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 16800 variables and 991 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 29.78 s
#### 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
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.85 0.94 0.90 2/54 10473
Raw data (stat): 10473 (runsolver) R 10472 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 909426186 884736 94 4294967295 134512640 135332820 3221224448 3221219628 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+9.99991 s]
Raw data (loadavg): 0.87 0.94 0.90 2/54 10473
Raw data (stat): 10473 (bsolo_lpr_cuts-) R 10472 25568 25567 0 -1 0 2188 0 0 0 992 5 0 0 25 0 1 0 909426186 21803008 2108 4294967295 134512640 134716908 3221224560 3221222788 1077414338 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5323 2108 1111 63 0 5260 0
vsize: 21292
[startup+20.0001 s]
Raw data (loadavg): 0.89 0.94 0.90 2/54 10473
Raw data (stat): 10473 (bsolo_lpr_cuts-) R 10472 25568 25567 0 -1 0 6454 0 0 0 1984 14 0 0 25 0 1 0 909426186 39374848 6374 4294967295 134512640 134716908 3221224560 3221221084 1077191664 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9613 6374 1111 63 0 9550 0
vsize: 38452
[startup+29.8328 s]
Raw data (loadavg): 0.91 0.94 0.90 1/53 10473
Raw data (stat): 10473 (bsolo_lpr_cuts-) R 10472 25568 25567 0 -1 0 6454 0 0 0 1984 14 0 0 25 0 1 0 909426186 39374848 6374 4294967295 134512640 134716908 3221224560 3221221084 1077191664 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9613 6374 1111 63 0 9550 0
vsize: 0

Child status: 20
Real time (s): 29.8325
CPU time (s): 29.8095
CPU user time (s): 29.4525
CPU system time (s): 0.356945
CPU usage (%): 99.9229
Max. virtual memory (Kb): 38452
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####