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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-sc105.opb
MD5SUM	c822b1c022f6bb2b01940173213da6e2
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	0
Optimality of the best value was proved	NO
Number of terms in the objective function	20
Biggest coefficient in the objective function	524288
Number of bits for the biggest coefficient in the objective function	20
Sum of the numbers in the objective function	1048575
Number of bits of the sum of numbers in the objective function	20
Biggest number in a constraint	8388608
Number of bits of the biggest number in a constraint	24
Biggest sum of numbers in a constraint	22020075
Number of bits of the biggest sum of numbers	25
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	2.85756
Number of variables	2060
Total number of constraints	104
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	104
Minimum length of a constraint	40
Maximum length of a constraint	80

Trace number 35467

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc27 THE 2005-05-28 13:16:13 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24769 boxname=wulflinc27 idbench=1241 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  c822b1c022f6bb2b01940173213da6e2  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-sc105.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-13-7-sc105.opb
IDLAUNCH: 24769
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
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	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
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:        752580 kB
Buffers:         34208 kB
Cached:         218048 kB
SwapCached:        704 kB
Active:          21008 kB
Inactive:       233276 kB
HighTotal:      131008 kB
HighFree:        44352 kB
LowTotal:       903652 kB
LowFree:        708228 kB
SwapTotal:     2097892 kB
SwapFree:      2096316 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5128 kB
Slab:            22100 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:17:39 (client local time) WITH STATUS 20 IN 85.83 SECONDS
stats: 24769 7 85.83 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c CONFLICT during preprocess 
c [startup+2.08425 s]  setting bit 19 to 0
c CONFLICT during preprocess 
c [startup+2.23045 s]  setting bit 18 to 0
c CONFLICT during preprocess 
c [startup+2.37903 s]  setting bit 17 to 0
c CONFLICT during preprocess 
c [startup+2.52611 s]  setting bit 16 to 0
c CONFLICT during preprocess 
c [startup+2.67453 s]  setting bit 15 to 0
c CONFLICT during preprocess 
c [startup+2.82297 s]  setting bit 14 to 0

Decision: 7529/46258	Time: 3.47247/86400c [startup+7.18706 s]  setting bit 13 to 0

Decision: 5065/46258	Time: 3.59145/86400
Decision: 5065/46258	Time: 6.43302/86400
Decision: 5068/46258	Time: 10.4844/86400
Decision: 5080/46258	Time: 17.9963/86400
Decision: 5080/46258	Time: 21.0888/86400
Decision: 5092/46258	Time: 26.318/86400
Decision: 5092/46258	Time: 30.2824/86400c [startup+40.0263 s]  setting bit 12 to 0
c [startup+57.3358 s]  setting bit 11 to 0
c [startup+64.2737 s]  setting bit 10 to 0
c [startup+71.3527 s]  setting bit 9 to 0
c [startup+77.0292 s]  setting bit 8 to 0
c [startup+80.6277 s]  setting bit 7 to 0
c [startup+82.031 s]  setting bit 6 to 0
c [startup+83.0252 s]  setting bit 5 to 0
c [startup+83.9186 s]  setting bit 4 to 0
c [startup+84.5411 s]  setting bit 3 to 0
c [startup+85.1258 s]  setting bit 2 to 0
c [startup+85.4489 s]  setting bit 1 to 0
c [startup+85.7339 s]  setting bit 0 to 0
s UNSATISFIABLE
#### 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
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.85 0.97 0.91 2/54 20422
Raw data (stat): 20422 (runsolver) R 20421 3394 3393 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865085056 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0004 s]
Raw data (loadavg): 0.87 0.97 0.91 2/54 20422
Raw data (stat): 20422 (pb2sat) R 20421 3394 3393 0 -1 0 7041 0 0 0 981 18 0 0 25 0 1 0 865085056 20885504 3498 4294967295 134512640 135726644 3221224576 3221223072 134744235 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 5099 3498 300 300 0 4799 0
vsize: 20396
[startup+20.001 s]
Raw data (loadavg): 0.89 0.97 0.91 2/54 20422
Raw data (stat): 20422 (pb2sat) R 20421 3394 3393 0 -1 0 7540 0 0 0 1977 21 0 0 25 0 1 0 865085056 21491712 3724 4294967295 134512640 135726644 3221224576 3221223072 134743955 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 5247 3724 300 300 0 4947 0
vsize: 20988
[startup+30.0015 s]
Raw data (loadavg): 0.91 0.97 0.91 2/54 20422
Raw data (stat): 20422 (pb2sat) R 20421 3394 3393 0 -1 0 8044 0 0 0 2975 23 0 0 25 0 1 0 865085056 22310912 4046 4294967295 134512640 135726644 3221224576 3221223072 134744053 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 5447 4046 300 300 0 5147 0
vsize: 21788
[startup+40.0028 s]
Raw data (loadavg): 0.92 0.97 0.91 2/54 20422
Raw data (stat): 20422 (pb2sat) R 20421 3394 3393 0 -1 0 8340 0 0 0 3973 25 0 0 25 0 1 0 865085056 22310912 4160 4294967295 134512640 135726644 3221224576 3221223296 134736256 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 5447 4160 300 300 0 5147 0
vsize: 21788
[startup+50.0106 s]
Raw data (loadavg): 0.93 0.97 0.91 2/54 20422
Raw data (stat): 20422 (pb2sat) R 20421 3394 3393 0 -1 0 8566 0 0 0 4972 26 0 0 25 0 1 0 865085056 22454272 4295 4294967295 134512640 135726644 3221224576 3221223072 134744030 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 5482 4295 300 300 0 5182 0
vsize: 21928
[startup+60.0099 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 20422
Raw data (stat): 20422 (pb2sat) R 20421 3394 3393 0 -1 0 8771 0 0 0 5971 27 0 0 25 0 1 0 865085056 26783744 4409 4294967295 134512640 135726644 3221224576 3221222896 134728892 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 6539 4409 300 300 0 6239 0
vsize: 26156
[startup+70.0107 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 20422
Raw data (stat): 20422 (pb2sat) R 20421 3394 3393 0 -1 0 8990 0 0 0 6970 28 0 0 25 0 1 0 865085056 26935296 4537 4294967295 134512640 135726644 3221224576 3221223072 134743955 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 6576 4537 300 300 0 6276 0
vsize: 26304
[startup+80.0108 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 20422
Raw data (stat): 20422 (pb2sat) R 20421 3394 3393 0 -1 0 9294 0 0 0 7969 29 0 0 25 0 1 0 865085056 27066368 4659 4294967295 134512640 135726644 3221224576 3221223200 134744667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 6608 4659 300 300 0 6308 0
vsize: 26432
[startup+85.8521 s]
Raw data (loadavg): 0.96 0.97 0.91 1/53 20422
Raw data (stat): 20422 (pb2sat) R 20421 3394 3393 0 -1 0 9294 0 0 0 7969 29 0 0 25 0 1 0 865085056 27066368 4659 4294967295 134512640 135726644 3221224576 3221223200 134744667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 6608 4659 300 300 0 6308 0
vsize: 0

Child status: 20
Real time (s): 85.8516
CPU time (s): 85.83
CPU user time (s): 85.503
CPU system time (s): 0.32695
CPU usage (%): 99.9748
Max. virtual memory (Kb): 26432
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####