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/www.csit.fsu.edu/~burkardt/datasets/mps/normalized-mps-v2-13-7-maros.opb
MD5SUM1ae5b04b2d0e1f5ab82e29e98b8350c0
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 43097
Optimality of the best value was proved YES
Number of terms in the objective function 64
Biggest coefficient in the objective function 4718592
Number of bits for the biggest coefficient in the objective function 23
Sum of the numbers in the objective function 14745570
Number of bits of the sum of numbers in the objective function 24
Biggest number in a constraint 4718592
Number of bits of the biggest number in a constraint 23
Biggest sum of numbers in a constraint 14745570
Number of bits of the biggest sum of numbers24
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark23.3694
Number of variables64
Total number of constraints6
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 constraints6
Minimum length of a constraint12
Maximum length of a constraint64

Trace number 5852

Launcher Data

LAUNCH ON wulflinc31 THE 2005-09-20 01:24:58 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2343 boxname=wulflinc31 idbench=1171 idsolver=2 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  1ae5b04b2d0e1f5ab82e29e98b8350c0  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-maros.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-maros.opb
IDLAUNCH: 2343
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
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		: 451.153
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:        914024 kB
Buffers:          8840 kB
Cached:          81280 kB
SwapCached:       1000 kB
Active:          14992 kB
Inactive:        77916 kB
HighTotal:      131008 kB
HighFree:        51436 kB
LowTotal:       903652 kB
LowFree:        862588 kB
SwapTotal:     2097892 kB
SwapFree:      2096408 kB
Dirty:              32 kB
Writeback:           0 kB
Mapped:           5776 kB
Slab:            21912 kB
Committed_AS:    64376 kB
PageTables:        340 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-20 01:24:59 (client local time) WITH STATUS 10 IN 1.07084 SECONDS
stats: 2343 0 1.07084 10

Solver Data

c Decisions:	4785
c Implications:	23905
c RUNTIME:	1.00085s
v VOL1_bit_7 VOL1_bit_6 VOL1_bit_5 VOL1_bit_4 VOL1_bit_3 VOL1_bit_2 VOL1_bit_1 VOL1_bit0 VOL1_bit1 -VOL1_bit2 -VOL1_bit3 -VOL1_bit4 -VOL1_bit5 -VOL1_bit6 -VOL1_bit7 -VOL1_bit8 -VOL1_bit9 -VOL1_bit10 -VOL1_bit11 -VOL1_bit12 -VOL2_bit_7 -VOL2_bit_6 VOL2_bit_5 VOL2_bit_4 -VOL2_bit_3 VOL2_bit_2 VOL2_bit_1 VOL2_bit0 VOL2_bit1 -VOL2_bit2 VOL2_bit3 -VOL2_bit4 -VOL2_bit5 -VOL2_bit6 -VOL2_bit7 -VOL2_bit8 -VOL2_bit9 -VOL2_bit10 -VOL2_bit11 -VOL2_bit12 VOL3_bit_7 VOL3_bit_6 VOL3_bit_5 VOL3_bit_4 VOL3_bit_3 VOL3_bit_2 -VOL3_bit_1 -VOL3_bit0 VOL3_bit1 VOL3_bit2 -VOL3_bit3 VOL3_bit4 -VOL4_bit_7 -VOL4_bit_6 VOL4_bit_5 VOL4_bit_4 VOL4_bit_3 VOL4_bit_2 VOL4_bit_1 VOL4_bit0 VOL4_bit1 -VOL4_bit2 VOL4_bit3 -VOL4_bit4 
s SATISFIABLE

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/31595/stat): 31595 (galena) R 31594 31595 9102 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 1854516970 1015808 2 4294967295 134512640 135412752 3221224560 3221224560 134512896 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/31595/statm): 248 2 241 241 0 7 0
[pid=31595] vsize: 992
open syscall for file /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-maros.opb
One traced child (pid=31595) exited with status: 10
All traced children have exited ! Game is over.

Child status: 10
Real time (s): 1.20834
CPU time (s): 1.07084
CPU user time (s): 1.00585
CPU system time (s): 0.06499
CPU usage (%): 88.6202
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	47467