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-neos9.opb
MD5SUM450ad3720278f8a937b0ae6f1c4dfd6d
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 145051
Biggest coefficient in the objective function 128
Number of bits for the biggest coefficient in the objective function 8
Sum of the numbers in the objective function 4825267
Number of bits of the sum of numbers in the objective function 23
Biggest number in a constraint 3840
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 4825267
Number of bits of the biggest sum of numbers23
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables636571
Total number of constraints113008
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)2186
Number of constraints which are nor clauses,nor cardinality constraints110822
Minimum length of a constraint1
Maximum length of a constraint10240

Trace number 5857

Launcher Data

LAUNCH ON wulflinc3 THE 2005-09-20 01:24:10 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2291 boxname=wulflinc3 idbench=1119 idsolver=2 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  450ad3720278f8a937b0ae6f1c4dfd6d  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-neos9.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-neos9.opb
IDLAUNCH: 2291
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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:        881340 kB
Buffers:          2128 kB
Cached:         123732 kB
SwapCached:        824 kB
Active:          62604 kB
Inactive:        65900 kB
HighTotal:      131008 kB
HighFree:         3724 kB
LowTotal:       903652 kB
LowFree:        877616 kB
SwapTotal:     2097136 kB
SwapFree:      2095740 kB
Dirty:               4 kB
Writeback:           0 kB
Mapped:           5656 kB
Slab:            18760 kB
Committed_AS:    72360 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-20 01:25:40 (client local time) WITH STATUS 0 IN 88.4486 SECONDS
stats: 2291 7 88.4486 0

Solver Data

c Decisions:	0
c Implications:	0
c RUNTIME:	85.263s
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/2979/stat): 2979 (galena) R 2978 2979 31915 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 1796312879 1015808 2 4294967295 134512640 135412752 3221224560 3221224560 134512896 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/2979/statm): 248 2 241 241 0 7 0
[pid=2979] vsize: 992
open syscall for file /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-neos9.opb

[startup+10.003 s]
Raw data (loadavg): 0.72 0.83 0.91 2/56 2979
Raw data (/proc/2979/stat): 2979 (galena) R 2978 2979 31915 0 -1 0 4189 0 0 0 981 14 0 0 25 0 1 0 1796312879 13496320 2907 4294967295 134512640 135412752 3221224560 3221221920 134726180 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/2979/statm): 3295 2907 241 241 0 3054 0
[pid=2979] vsize: 13180
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 13180

[startup+20.0049 s]
Raw data (loadavg): 0.77 0.84 0.91 2/56 2979
Raw data (/proc/2979/stat): 2979 (galena) R 2978 2979 31915 0 -1 0 9716 0 0 0 1964 29 0 0 25 0 1 0 1796312879 32866304 7438 4294967295 134512640 135412752 3221224560 3221222176 134845151 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/2979/statm): 8024 7438 241 241 0 7783 0
[pid=2979] vsize: 32096
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 32096

[startup+30.0047 s]
Raw data (loadavg): 0.80 0.84 0.91 2/56 2979
Raw data (/proc/2979/stat): 2979 (galena) R 2978 2979 31915 0 -1 0 14922 0 0 0 2941 44 0 0 25 0 1 0 1796312879 52109312 11684 4294967295 134512640 135412752 3221224560 3221221888 134704072 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/2979/statm): 12722 11684 241 241 0 12481 0
[pid=2979] vsize: 50888
Current children cumulated CPU time (s) 29.85
Current children cumulated vsize (Kb) 50888

[startup+40.0056 s]
Raw data (loadavg): 0.83 0.85 0.91 2/56 2979
Raw data (/proc/2979/stat): 2979 (galena) R 2978 2979 31915 0 -1 0 17348 0 0 0 3929 52 0 0 25 0 1 0 1796312879 58662912 13270 4294967295 134512640 135412752 3221224560 3221221920 134726556 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/2979/statm): 14322 13270 241 241 0 14081 0
[pid=2979] vsize: 57288
Current children cumulated CPU time (s) 39.81
Current children cumulated vsize (Kb) 57288

[startup+50.0064 s]
Raw data (loadavg): 0.86 0.85 0.91 2/56 2979
Raw data (/proc/2979/stat): 2979 (galena) R 2978 2979 31915 0 -1 0 18366 0 0 0 4918 60 0 0 25 0 1 0 1796312879 61558784 14246 4294967295 134512640 135412752 3221224560 3221221904 134800019 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/2979/statm): 15029 14246 241 241 0 14788 0
[pid=2979] vsize: 60116
Current children cumulated CPU time (s) 49.78
Current children cumulated vsize (Kb) 60116

[startup+60.0062 s]
Raw data (loadavg): 0.88 0.86 0.91 2/56 2979
Raw data (/proc/2979/stat): 2979 (galena) R 2978 2979 31915 0 -1 0 20007 0 0 0 5907 68 0 0 25 0 1 0 1796312879 68169728 15887 4294967295 134512640 135412752 3221224560 3221222316 134851914 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/2979/statm): 16643 15889 241 241 0 16402 0
[pid=2979] vsize: 66572
Current children cumulated CPU time (s) 59.75
Current children cumulated vsize (Kb) 66572

[startup+70.0071 s]
Raw data (loadavg): 0.90 0.86 0.91 3/56 2979
Raw data (/proc/2979/stat): 2979 (galena) R 2978 2979 31915 0 -1 0 21537 0 0 0 6896 76 0 0 25 0 1 0 1796312879 74235904 17417 4294967295 134512640 135412752 3221224560 3221221852 134845072 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/2979/statm): 18124 17417 241 241 0 17883 0
[pid=2979] vsize: 72496
Current children cumulated CPU time (s) 69.72
Current children cumulated vsize (Kb) 72496

[startup+80.0079 s]
Raw data (loadavg): 0.91 0.86 0.91 2/56 2979
Raw data (/proc/2979/stat): 2979 (galena) R 2978 2979 31915 0 -1 0 29637 0 0 0 7873 97 0 0 25 0 1 0 1796312879 114991104 25407 4294967295 134512640 135412752 3221224560 3221222640 134515795 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/2979/statm): 28074 25408 241 241 0 27833 0
[pid=2979] vsize: 112296
Current children cumulated CPU time (s) 79.7
Current children cumulated vsize (Kb) 112296
One traced child (pid=2979) exited with status: 0
All traced children have exited ! Game is over.

Child status: 0
Real time (s): 88.7483
CPU time (s): 88.4486
CPU user time (s): 86.6978
CPU system time (s): 1.75073
CPU usage (%): 99.6623
Max. virtual memory (cumulated for all children) (Kb): 112296

Verifier Data

ERROR: no interpretation found !