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/MIPLIB/miplib3/normalized-mps-v2-13-7-stein45.opb
MD5SUM5c72b08d2dc855d07dab2f619386e796
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 30
Optimality of the best value was proved YES
Number of terms in the objective function 45
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 45
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 22
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 67
Number of bits of the biggest sum of numbers7
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark79.065
Number of variables45
Total number of constraints376
Number of constraints which are clauses330
Number of constraints which are cardinality constraints (but not clauses)46
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint45

Trace number 5733

Launcher Data

LAUNCH ON wulflinc3 THE 2005-09-20 01:22:46 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2223 boxname=wulflinc3 idbench=1051 idsolver=2 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  5c72b08d2dc855d07dab2f619386e796  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-stein45.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-stein45.opb
IDLAUNCH: 2223
/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:        934272 kB
Buffers:          1960 kB
Cached:          71540 kB
SwapCached:        824 kB
Active:          14808 kB
Inactive:        61328 kB
HighTotal:      131008 kB
HighFree:        55496 kB
LowTotal:       903652 kB
LowFree:        878776 kB
SwapTotal:     2097136 kB
SwapFree:      2095740 kB
Dirty:               4 kB
Writeback:           0 kB
Mapped:           5656 kB
Slab:            18396 kB
Committed_AS:    72324 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-20 01:22:47 (client local time) WITH STATUS 10 IN 1.05184 SECONDS
stats: 2223 0 1.05184 10

Solver Data

c Decisions:	3116
c Implications:	23270
c RUNTIME:	1.00085s
v V0001_bit0 V0002_bit0 V0003_bit0 V0004_bit0 V0005_bit0 -V0006_bit0 -V0007_bit0 -V0008_bit0 -V0009_bit0 -V0010_bit0 V0011_bit0 V0012_bit0 V0013_bit0 V0014_bit0 V0015_bit0 -V0016_bit0 -V0017_bit0 -V0018_bit0 -V0019_bit0 -V0020_bit0 V0021_bit0 V0022_bit0 V0023_bit0 V0024_bit0 V0025_bit0 V0026_bit0 V0027_bit0 V0028_bit0 V0029_bit0 V0030_bit0 V0031_bit0 V0032_bit0 V0033_bit0 V0034_bit0 V0035_bit0 -V0036_bit0 -V0037_bit0 -V0038_bit0 -V0039_bit0 -V0040_bit0 V0041_bit0 V0042_bit0 V0043_bit0 V0044_bit0 V0045_bit0 
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/2432/stat): 2432 (galena) R 2431 2432 31915 0 -1 0 18 0 0 0 0 0 0 0 19 0 1 0 1796304339 1015808 2 4294967295 134512640 135412752 3221224560 3221224560 134512896 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/2432/statm): 248 2 241 241 0 7 0
[pid=2432] vsize: 992
open syscall for file /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-stein45.opb
One traced child (pid=2432) exited with status: 10
All traced children have exited ! Game is over.

Child status: 10
Real time (s): 1.16212
CPU time (s): 1.05184
CPU user time (s): 1.00485
CPU system time (s): 0.046992
CPU usage (%): 90.5104
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	30