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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-fit2d.opb
MD5SUMe4d850251a185eefeba808334bb200f5
Bench Categoryoptimization, medium integers (OPTMEDINT)
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 102000
Biggest coefficient in the objective function 166502400
Number of bits for the biggest coefficient in the objective function 28
Sum of the numbers in the objective function 44079267426
Number of bits of the sum of numbers in the objective function 36
Biggest number in a constraint 166502400
Number of bits of the biggest number in a constraint 28
Biggest sum of numbers in a constraint 44079267426
Number of bits of the biggest sum of numbers36
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark267.004
Number of variables118500
Total number of constraints10525
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 constraints10525
Minimum length of a constraint10
Maximum length of a constraint118500

Trace number 23102 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc20 THE 2005-04-22 04:33:02 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=10807 boxname=wulflinc20 idbench=832 idsolver=4 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  e4d850251a185eefeba808334bb200f5  /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-fit2d.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-fit2d.opb
IDLAUNCH: 10807
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.215
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		: 451.215
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        384964 kB
Buffers:         32864 kB
Cached:         593172 kB
SwapCached:        516 kB
Active:         221452 kB
Inactive:       406520 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        384712 kB
SwapTotal:     2097892 kB
SwapFree:      2096480 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5116 kB
Slab:            16204 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-22 04:33:57 (client local time) WITH STATUS 20 IN 53.9458 SECONDS
stats: 10807 7 53.9458 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Decisions:	0
c Implications:	17
c RUNTIME:	52.766s
s UNSATISFIABLE
#### 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
Raw data (loadavg): 0.77 0.91 0.95 2/54 19174
Raw data (stat): 19174 (runsolver) R 19173 27565 27564 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 550868782 1052672 99 4294967295 134512640 135381576 3221224528 3221219776 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0002 s]
Raw data (loadavg): 0.81 0.91 0.95 2/54 19174
Raw data (stat): 19174 (galena) R 19173 27565 27564 0 -1 0 3568 0 0 0 988 11 0 0 25 0 1 0 550868782 12156928 2656 4294967295 134512640 135412752 3221224624 3221221984 134725768 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 2968 2656 241 241 0 2727 0
vsize: 11872
[startup+19.9996 s]
Raw data (loadavg): 0.84 0.92 0.95 2/54 19174
Raw data (stat): 19174 (galena) R 19173 27565 27564 0 -1 0 5954 0 0 0 1980 19 0 0 25 0 1 0 550868782 15831040 3597 4294967295 134512640 135412752 3221224624 3221222352 134930128 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3865 3597 241 241 0 3624 0
vsize: 15460
[startup+29.9993 s]
Raw data (loadavg): 0.86 0.92 0.95 2/54 19174
Raw data (stat): 19174 (galena) R 19173 27565 27564 0 -1 0 8113 0 0 0 2971 29 0 0 25 0 1 0 550868782 18530304 4285 4294967295 134512640 135412752 3221224624 3221221856 134845170 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4524 4285 241 241 0 4283 0
vsize: 18096
[startup+39.9997 s]
Raw data (loadavg): 0.88 0.92 0.95 2/54 19174
Raw data (stat): 19174 (galena) R 19173 27565 27564 0 -1 0 10484 0 0 0 3962 37 0 0 25 0 1 0 550868782 21630976 5020 4294967295 134512640 135412752 3221224624 3221222144 134841763 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5281 5020 241 241 0 5040 0
vsize: 21124
[startup+50.0006 s]
Raw data (loadavg): 0.90 0.92 0.95 2/54 19174
Raw data (stat): 19174 (galena) R 19173 27565 27564 0 -1 0 16306 0 0 0 4946 53 0 0 25 0 1 0 550868782 33148928 7820 4294967295 134512640 135412752 3221224624 3221222640 134523600 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8093 7820 241 241 0 7852 0
vsize: 32372
[startup+53.9502 s]
Raw data (loadavg): 0.90 0.92 0.95 1/53 19174
Raw data (stat): 19174 (galena) R 19173 27565 27564 0 -1 0 16306 0 0 0 4946 53 0 0 25 0 1 0 550868782 33148928 7820 4294967295 134512640 135412752 3221224624 3221222640 134523600 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8093 7820 241 241 0 7852 0
vsize: 0

Child status: 20
Real time (s): 53.95
CPU time (s): 53.9458
CPU user time (s): 53.0799
CPU system time (s): 0.865868
CPU usage (%): 99.9922
Max. virtual memory (Kb): 32372
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####