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/MIPLIB/miplib2003/normalized-mps-v2-20-10-stp3d.opb
MD5SUMbd41ba4f2ddbc80664ba643e2dc93b96
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 75648
Biggest coefficient in the objective function 100303
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 7576279200
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 100303
Number of bits of the biggest number in a constraint 17
Biggest sum of numbers in a constraint 7576279200
Number of bits of the biggest sum of numbers33
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.74658
Number of variables204880
Total number of constraints364368
Number of constraints which are clauses129232
Number of constraints which are cardinality constraints (but not clauses)210685
Number of constraints which are nor clauses,nor cardinality constraints24451
Minimum length of a constraint1
Maximum length of a constraint120

Trace number 21465 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc11 THE 2005-04-22 00:12:55 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=13043 boxname=wulflinc11 idbench=1004 idsolver=4 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  bd41ba4f2ddbc80664ba643e2dc93b96  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-stp3d.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-stp3d.opb
IDLAUNCH: 13043
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.028
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		: 451.028
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:        251680 kB
Buffers:         35996 kB
Cached:         724380 kB
SwapCached:          0 kB
Active:         280876 kB
Inactive:       482316 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        251428 kB
SwapTotal:     2097136 kB
SwapFree:      2097048 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6820 kB
Slab:            14092 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-22 00:13:38 (client local time) WITH STATUS 20 IN 41.8116 SECONDS
stats: 13043 7 41.8116 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Decisions:	0
c Implications:	91313
c RUNTIME:	40.4229s
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): 0.90 0.94 0.90 2/54 13923
Raw data (stat): 13923 (runsolver) R 13922 32461 32460 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 491084645 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): 0.91 0.94 0.90 2/54 13923
Raw data (stat): 13923 (galena) R 13922 32461 32460 0 -1 0 2490 0 0 0 989 10 0 0 25 0 1 0 491084645 7794688 1679 4294967295 134512640 135412752 3221224624 3221222124 134799952 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 1903 1679 241 241 0 1662 0
vsize: 7612
[startup+20.1029 s]
Raw data (loadavg): 0.92 0.94 0.91 2/54 13923
Raw data (stat): 13923 (galena) R 13922 32461 32460 0 -1 0 7246 0 0 0 1987 23 0 0 25 0 1 0 491084645 22020096 5054 4294967295 134512640 135412752 3221224624 3221222364 134846224 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5376 5054 241 241 0 5135 0
vsize: 21504
[startup+30.1023 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 13923
Raw data (stat): 13923 (galena) R 13922 32461 32460 0 -1 0 10388 0 0 0 2978 31 0 0 25 0 1 0 491084645 34258944 6915 4294967295 134512640 135412752 3221224624 3221222380 134851914 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8364 6915 241 241 0 8123 0
vsize: 33456
[startup+40.1106 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 13923
Raw data (stat): 13923 (galena) R 13922 32461 32460 0 -1 0 23525 0 0 0 3951 59 0 0 25 0 1 0 491084645 91680768 19420 4294967295 134512640 135412752 3221224624 3221222704 134541351 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 22383 19420 241 241 0 22142 0
vsize: 89532
[startup+41.8109 s]
Raw data (loadavg): 0.95 0.95 0.91 1/53 13923
Raw data (stat): 13923 (galena) R 13922 32461 32460 0 -1 0 23525 0 0 0 3951 59 0 0 25 0 1 0 491084645 91680768 19420 4294967295 134512640 135412752 3221224624 3221222704 134541351 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 22383 19420 241 241 0 22142 0
vsize: 0

Child status: 20
Real time (s): 41.8105
CPU time (s): 41.8116
CPU user time (s): 41.1337
CPU system time (s): 0.677896
CPU usage (%): 100.003
Max. virtual memory (Kb): 89532
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####