PB'05 competition: run trace

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:

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.
SOLVER DATA
This is the output of the solver (stdout and stderr).
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.
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

Name	normalized-opb/mps-v2-13-7/MIPLIB/miplib3/normalized-mps-v2-13-7-stein27.opb
MD5SUM	5cfd2609faa97ca60458112609ce37ee
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	18
Optimality of the best value was proved	NO
Number of terms in the objective function	27
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	27
Number of bits of the sum of numbers in the objective function	5
Biggest number in a constraint	13
Number of bits of the biggest number in a constraint	4
Biggest sum of numbers in a constraint	40
Number of bits of the biggest sum of numbers	6
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1.01684
Number of variables	27
Total number of constraints	145
Number of constraints which are clauses	117
Number of constraints which are cardinality constraints (but not clauses)	28
Number of constraints which are nor clauses,nor cardinality constraints	0
Minimum length of a constraint	1
Maximum length of a constraint	27

Trace number 35665

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc22 THE 2005-05-28 13:45:36 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24982 boxname=wulflinc22 idbench=1454 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  5cfd2609faa97ca60458112609ce37ee  /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-13-7-stein27.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-13-7-stein27.opb
IDLAUNCH: 24982
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.031
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	: 3
cpu MHz		: 451.031
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:        776856 kB
Buffers:         33668 kB
Cached:         193816 kB
SwapCached:        384 kB
Active:          53976 kB
Inactive:       183336 kB
HighTotal:      131008 kB
HighFree:        12180 kB
LowTotal:       903652 kB
LowFree:        764676 kB
SwapTotal:     2097892 kB
SwapFree:      2096800 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5540 kB
Slab:            14944 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:45:42 (client local time) WITH STATUS 30 IN 6.02608 SECONDS
stats: 24982 0 6.02608 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c [startup+0.121713 s]  setting bit 4 to 0
c got solution with objective value: 19
c [startup+0.125043 s]  setting bit 3 to 1
c [startup+0.624648 s]  setting bit 2 to 0

Decision: 207/633	Time: 1.39779/86400
Decision: 207/633	Time: 1.75673/86400
Decision: 207/633	Time: 2.13867/86400
Decision: 207/633	Time: 2.52862/86400
Decision: 207/633	Time: 2.92156/86400
Decision: 207/633	Time: 3.39248/86400
Decision: 237/633	Time: 4.20236/86400
Decision: 237/633	Time: 4.63729/86400c [startup+6.00913 s]  setting bit 1 to 0
c got solution with objective value: 18
c [startup+6.02005 s]  setting bit 0 to 1
s OPTIMUM FOUND
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 
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Enforcing Stack size limit: 67108864 bytes
Raw data (loadavg): 0.90 0.94 0.90 2/54 1323
Raw data (stat): 1323 (runsolver) R 1322 23310 23309 0 -1 64 0 0 0 0 0 0 0 0 19 0 1 0 865266162 884736 93 4294967295 134512640 135332820 3221224464 3221219872 134515228 0 0 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 93 205 205 0 11 0
vsize: 864
Current StackSize limit: 67108864 bytes
[startup+6.03228 s]
Raw data (loadavg): 0.91 0.94 0.90 1/53 1323
Raw data (stat): 1323 (runsolver) R 1322 23310 23309 0 -1 64 0 0 0 0 0 0 0 0 19 0 1 0 865266162 884736 93 4294967295 134512640 135332820 3221224464 3221219872 134515228 0 0 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 93 205 205 0 11 0
vsize: 0

Child status: 30
Real time (s): 6.03204
CPU time (s): 6.02608
CPU user time (s): 5.97809
CPU system time (s): 0.047992
CPU usage (%): 99.9013
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	18
#### END VERIFIER DATA ####