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-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-dano3mip.opb
MD5SUM07b8540d5ec185750fee03977f8da675
Bench Categoryoptimization, big integers (OPTBIGINT)
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 30
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 1073741823
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 67108864000
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 569083166190
Number of bits of the biggest sum of numbers40
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables399966
Total number of constraints3778
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)600
Number of constraints which are nor clauses,nor cardinality constraints3178
Minimum length of a constraint1
Maximum length of a constraint15900

Trace number 3801

Launcher Data

LAUNCH ON wulflinc28 THE 2005-09-19 03:04:22 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=1734 boxname=wulflinc28 idbench=562 idsolver=2 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  07b8540d5ec185750fee03977f8da675  /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-20-10-dano3mip.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-20-10-dano3mip.opb
IDLAUNCH: 1734
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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		: 451.077
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:        848536 kB
Buffers:         35196 kB
Cached:         122004 kB
SwapCached:        696 kB
Active:         113416 kB
Inactive:        46356 kB
HighTotal:      131008 kB
HighFree:         5348 kB
LowTotal:       903652 kB
LowFree:        843188 kB
SwapTotal:     2097640 kB
SwapFree:      2096372 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5812 kB
Slab:            20704 kB
Committed_AS:    64164 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-19 03:04:50 (client local time) WITH STATUS 0 IN 26.487 SECONDS
stats: 1734 7 26.487 0

Solver Data

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/8667/stat): 8667 (galena) R 8666 8667 20115 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 1846523115 1015808 2 4294967295 134512640 135412752 3221224560 3221224560 134512896 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8667/statm): 248 2 241 241 0 7 0
[pid=8667] vsize: 992
open syscall for file /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-20-10-dano3mip.opb

[startup+10.0023 s]
Raw data (loadavg): 0.61 0.85 0.98 2/56 8667
Raw data (/proc/8667/stat): 8667 (galena) R 8666 8667 20115 0 -1 0 4814 0 0 0 982 13 0 0 25 0 1 0 1846523115 19124224 4422 4294967295 134512640 135412752 3221224560 3221222208 134672555 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8667/statm): 4669 4422 241 241 0 4428 0
[pid=8667] vsize: 18676
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 18676

[startup+20.0029 s]
Raw data (loadavg): 0.67 0.86 0.98 2/56 8667
Raw data (/proc/8667/stat): 8667 (galena) R 8666 8667 20115 0 -1 0 7574 0 0 0 1965 26 0 0 25 0 1 0 1846523115 29130752 6732 4294967295 134512640 135412752 3221224560 3221222092 134832640 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8667/statm): 7112 6732 241 241 0 6871 0
[pid=8667] vsize: 28448
Current children cumulated CPU time (s) 19.91
Current children cumulated vsize (Kb) 28448
One traced child (pid=8667) ended because it received signal 6 (SIGABRT)
All traced children have exited ! Game is over.

Child ended because it received signal 6 (SIGABRT)
Real time (s): 26.589
CPU time (s): 26.487
CPU user time (s): 26.138
CPU system time (s): 0.348946
CPU usage (%): 99.6164
Max. virtual memory (cumulated for all children) (Kb): 28448

Verifier Data

ERROR: no interpretation found !