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-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-p0033.opb
MD5SUM	57736ac00f3096f4db9863fb985591a0
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	3089
Optimality of the best value was proved	NO
Number of terms in the objective function	33
Biggest coefficient in the objective function	517
Number of bits for the biggest coefficient in the objective function	10
Sum of the numbers in the objective function	7276
Number of bits of the sum of numbers in the objective function	13
Biggest number in a constraint	1656
Number of bits of the biggest number in a constraint	11
Biggest sum of numbers in a constraint	7276
Number of bits of the biggest sum of numbers	13
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.063989
Number of variables	33
Total number of constraints	48
Number of constraints which are clauses	1
Number of constraints which are cardinality constraints (but not clauses)	36
Number of constraints which are nor clauses,nor cardinality constraints	11
Minimum length of a constraint	1
Maximum length of a constraint	19

Trace number 42411

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 07:02:14 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25631 boxname=wulflinc4 idbench=931 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  57736ac00f3096f4db9863fb985591a0  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-p0033.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-p0033.opb
IDLAUNCH: 25631
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        700688 kB
Buffers:         34436 kB
Cached:         277828 kB
SwapCached:        944 kB
Active:          29044 kB
Inactive:       285328 kB
HighTotal:      131008 kB
HighFree:          532 kB
LowTotal:       903652 kB
LowFree:        700156 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              52 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14044 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 07:02:45 (client local time) WITH STATUS 30 IN 31.0883 SECONDS
stats: 25631 0 31.0883 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 4932
c small objective detected
c [startup+2.40689 s]  setting bit 12 to 0
c [startup+12.1951 s]  setting bit 11 to 0
c got solution with objective value: 3843
c [startup+13.427 s]  setting bit 10 to 1
c got solution with objective value: 3343
c [startup+13.6756 s]  setting bit 9 to 1
c got solution with objective value: 3095
c [startup+15.7182 s]  setting bit 8 to 1
c [startup+22.0686 s]  setting bit 7 to 0
c [startup+25.9043 s]  setting bit 6 to 0
c got solution with objective value: 3089
c [startup+27.0922 s]  setting bit 5 to 1
c got solution with objective value: 3089
c [startup+29.9632 s]  setting bit 4 to 1
c [startup+30.2505 s]  setting bit 3 to 0
c [startup+30.4565 s]  setting bit 2 to 0
c got solution with objective value: 3089
c [startup+30.711 s]  setting bit 1 to 1
c CONFLICT during preprocess 
c [startup+30.918 s]  setting bit 0 to 0
s OPTIMUM FOUND
v C157_bit0 -C158_bit0 -C159_bit0 -C160_bit0 -C161_bit0 -C162_bit0 C163_bit0 C164_bit0 -C165_bit0 C166_bit0 -C167_bit0 -C168_bit0 -C169_bit0 C170_bit0 -C171_bit0 -C172_bit0 -C173_bit0 C174_bit0 -C175_bit0 -C176_bit0 C177_bit0 -C178_bit0 C179_bit0 -C180_bit0 C181_bit0 C182_bit0 C183_bit0 C184_bit0 C185_bit0 C186_bit0 -C187_bit0 -C188_bit0 -C189_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): 0.94 0.98 0.91 2/54 23319
Raw data (stat): 23319 (runsolver) R 23318 21152 21151 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 968797040 884736 93 4294967295 134512640 135332820 3221224464 3221219632 134692420 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+10.0011 s]
Raw data (loadavg): 0.95 0.98 0.91 2/54 23319
Raw data (stat): 23319 (pb2sat-v2) R 23318 21152 21151 0 -1 0 7198 0 0 0 985 13 0 0 25 0 1 0 968797040 24174592 4313 4294967295 134512640 135730672 3221224576 3221222688 134732518 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 5902 4313 301 301 0 5601 0
vsize: 23608
[startup+20.0016 s]
Raw data (loadavg): 0.95 0.98 0.91 2/54 23319
Raw data (stat): 23319 (pb2sat-v2) R 23318 21152 21151 0 -1 0 7595 0 0 0 1984 15 0 0 25 0 1 0 968797040 24440832 4362 4294967295 134512640 135730672 3221224576 3221222864 134747489 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 5967 4362 301 301 0 5666 0
vsize: 23868
[startup+30.0031 s]
Raw data (loadavg): 0.96 0.98 0.91 2/54 23319
Raw data (stat): 23319 (pb2sat-v2) R 23318 21152 21151 0 -1 0 7998 0 0 0 2983 16 0 0 25 0 1 0 968797040 24928256 4471 4294967295 134512640 135730672 3221224576 3221222680 134765477 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 6086 4471 301 301 0 5785 0
vsize: 24344
[startup+31.1042 s]
Raw data (loadavg): 0.96 0.98 0.91 1/53 23319
Raw data (stat): 23319 (pb2sat-v2) R 23318 21152 21151 0 -1 0 7998 0 0 0 2983 16 0 0 25 0 1 0 968797040 24928256 4471 4294967295 134512640 135730672 3221224576 3221222680 134765477 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 6086 4471 301 301 0 5785 0
vsize: 0

Child status: 30
Real time (s): 31.1039
CPU time (s): 31.0883
CPU user time (s): 30.9123
CPU system time (s): 0.175973
CPU usage (%): 99.9496
Max. virtual memory (Kb): 24344
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	3089
#### END VERIFIER DATA ####