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-v2-13-7/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-dano3_5.opb
MD5SUMeaead9cf67652e4b2ad71612149d4439
Bench Categoryoptimization, medium integers (OPTMEDINT)
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 20
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 1048575
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 131072000
Number of bits of the biggest number in a constraint 27
Biggest sum of numbers in a constraint 576307709
Number of bits of the biggest sum of numbers30
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables269983
Total number of constraints3778
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)120
Number of constraints which are nor clauses,nor cardinality constraints3658
Minimum length of a constraint1
Maximum length of a constraint10600

Trace number 6003

Launcher Data

LAUNCH ON wulflinc30 THE 2005-09-20 02:53:37 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2270 boxname=wulflinc30 idbench=1098 idsolver=2 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  eaead9cf67652e4b2ad71612149d4439  /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-13-7-dano3_5.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-13-7-dano3_5.opb
IDLAUNCH: 2270
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.072
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		: 451.072
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:        844136 kB
Buffers:         27744 kB
Cached:         132732 kB
SwapCached:        752 kB
Active:          56332 kB
Inactive:       106760 kB
HighTotal:      131008 kB
HighFree:         4340 kB
LowTotal:       903652 kB
LowFree:        839796 kB
SwapTotal:     2097892 kB
SwapFree:      2096620 kB
Dirty:               8 kB
Writeback:           0 kB
Mapped:           5716 kB
Slab:            21792 kB
Committed_AS:    64304 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-20 02:54:27 (client local time) WITH STATUS 0 IN 49.7724 SECONDS
stats: 2270 7 49.7724 0

Solver Data

c Decisions:	0
c Implications:	29301
c RUNTIME:	48.2417s
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/3045/stat): 3045 (galena) R 3044 3045 5245 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 1855076505 1015808 2 4294967295 134512640 135412752 3221224560 3221224560 134512896 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3045/statm): 248 2 241 241 0 7 0
[pid=3045] vsize: 992
open syscall for file /oldhome/oroussel/tmp/wulflinc30/normalized-mps-v2-13-7-dano3_5.opb

[startup+10.0023 s]
Raw data (loadavg): 0.34 0.08 0.02 2/56 3045
Raw data (/proc/3045/stat): 3045 (galena) R 3044 3045 5245 0 -1 0 3890 0 0 0 984 11 0 0 25 0 1 0 1855076505 15626240 3531 4294967295 134512640 135412752 3221224560 3221222172 135039665 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3045/statm): 3815 3531 241 241 0 3574 0
[pid=3045] vsize: 15260
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 15260

[startup+20.0031 s]
Raw data (loadavg): 0.44 0.11 0.03 2/56 3045
Raw data (/proc/3045/stat): 3045 (galena) R 3044 3045 5245 0 -1 0 8183 0 0 0 1968 24 0 0 25 0 1 0 1855076505 31993856 7374 4294967295 134512640 135412752 3221224560 3221221804 134840846 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/3045/statm): 7811 7374 241 241 0 7570 0
[pid=3045] vsize: 31244
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 31244

[startup+30.0039 s]
Raw data (loadavg): 0.53 0.14 0.04 2/56 3045
Raw data (/proc/3045/stat): 3045 (galena) R 3044 3045 5245 0 -1 0 8376 0 0 0 2959 30 0 0 25 0 1 0 1855076505 32849920 7567 4294967295 134512640 135412752 3221224560 3221221908 135039466 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/3045/statm): 8020 7567 241 241 0 7779 0
[pid=3045] vsize: 32080
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 32080

[startup+40.0047 s]
Raw data (loadavg): 0.60 0.17 0.05 2/56 3045
Raw data (/proc/3045/stat): 3045 (galena) R 3044 3045 5245 0 -1 0 12569 0 0 0 3944 42 0 0 25 0 1 0 1855076505 49958912 11760 4294967295 134512640 135412752 3221224560 3221222416 134835672 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/3045/statm): 12197 11760 241 241 0 11956 0
[pid=3045] vsize: 48788
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 48788
One traced child (pid=3045) exited with status: 0
All traced children have exited ! Game is over.

Child status: 0
Real time (s): 49.9288
CPU time (s): 49.7724
CPU user time (s): 48.8366
CPU system time (s): 0.935857
CPU usage (%): 99.6869
Max. virtual memory (cumulated for all children) (Kb): 48788

Verifier Data

ERROR: no interpretation found !