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-mod008.opb
MD5SUM	fbdb3cf321a85412feefcaac30780520
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	307
Optimality of the best value was proved	NO
Number of terms in the objective function	319
Biggest coefficient in the objective function	87
Number of bits for the biggest coefficient in the objective function	7
Sum of the numbers in the objective function	23554
Number of bits of the sum of numbers in the objective function	15
Biggest number in a constraint	22000
Number of bits of the biggest number in a constraint	15
Biggest sum of numbers in a constraint	1027256
Number of bits of the biggest sum of numbers	20
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1.01584
Number of variables	319
Total number of constraints	325
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	319
Number of constraints which are nor clauses,nor cardinality constraints	6
Minimum length of a constraint	1
Maximum length of a constraint	231

Trace number 35153

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-05-28 12:19:34 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24454 boxname=wulflinc1 idbench=926 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  fbdb3cf321a85412feefcaac30780520  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-mod008.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-mod008.opb
IDLAUNCH: 24454
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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	: 2
cpu MHz		: 451.053
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:        693236 kB
Buffers:         36976 kB
Cached:         280496 kB
SwapCached:        700 kB
Active:          23696 kB
Inactive:       296044 kB
HighTotal:      131008 kB
HighFree:        22820 kB
LowTotal:       903652 kB
LowFree:        670416 kB
SwapTotal:     2097136 kB
SwapFree:      2095368 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5812 kB
Slab:            15816 kB
Committed_AS:    92716 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:21:22 (client local time) WITH STATUS 1 IN 107.537 SECONDS
stats: 24454 7 107.537 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc
#### 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): 0.91 0.96 0.91 1/55 19550
Raw data (stat): 19550 (runsolver) R 19549 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 749672866 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): 0.93 0.96 0.91 2/55 19550
Raw data (stat): 19550 (pb2sat) R 19549 8378 8377 0 -1 0 30207 0 0 0 935 63 0 0 25 0 1 0 749672866 89866240 19066 4294967295 134512640 135726644 3221224576 3221146128 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21940 19066 300 300 0 21640 0
vsize: 87760
[startup+20.0015 s]
Raw data (loadavg): 0.94 0.97 0.91 2/55 19550
Raw data (stat): 19550 (pb2sat) R 19549 8378 8377 0 -1 0 59688 0 0 0 1873 125 0 0 25 0 1 0 749672866 176906240 37324 4294967295 134512640 135726644 3221224576 3221102552 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43190 37324 300 300 0 42890 0
vsize: 172760
[startup+30.0019 s]
Raw data (loadavg): 0.95 0.97 0.91 2/55 19550
Raw data (stat): 19550 (pb2sat) R 19549 8378 8377 0 -1 0 99357 0 0 0 2797 201 0 0 25 0 1 0 749672866 332873728 54811 4294967295 134512640 135726644 3221224576 3221160980 134608834 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81268 54812 300 300 0 80968 0
vsize: 325072
[startup+40.0017 s]
Raw data (loadavg): 0.95 0.97 0.91 2/55 19550
Raw data (stat): 19550 (pb2sat) R 19549 8378 8377 0 -1 0 117772 0 0 0 3757 241 0 0 25 0 1 0 749672866 349634560 72974 4294967295 134512640 135726644 3221224576 3221179664 134767123 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85360 72974 300 300 0 85060 0
vsize: 341440
[startup+50.0015 s]
Raw data (loadavg): 0.96 0.97 0.91 2/55 19550
Raw data (stat): 19550 (pb2sat) R 19549 8378 8377 0 -1 0 163699 0 0 0 4670 329 0 0 25 0 1 0 749672866 563748864 117701 4294967295 134512640 135726644 3221224576 3221168960 134772474 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 137634 117701 300 300 0 137334 0
vsize: 550536
[startup+60.0013 s]
Raw data (loadavg): 0.97 0.97 0.91 2/55 19550
Raw data (stat): 19550 (pb2sat) R 19549 8378 8377 0 -1 0 196898 0 0 0 5597 401 0 0 25 0 1 0 749672866 622460928 107735 4294967295 134512640 135726644 3221224576 3221149600 134780435 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 151968 107735 300 300 0 151668 0
vsize: 607872
[startup+70.001 s]
Raw data (loadavg): 0.97 0.97 0.91 2/55 19550
Raw data (stat): 19550 (pb2sat) R 19549 8378 8377 0 -1 0 211854 0 0 0 6566 433 0 0 25 0 1 0 749672866 629219328 122454 4294967295 134512640 135726644 3221224576 3221172952 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153618 122454 300 300 0 153318 0
vsize: 614472
[startup+80.0022 s]
Raw data (loadavg): 0.98 0.97 0.91 2/55 19550
Raw data (stat): 19550 (pb2sat) R 19549 8378 8377 0 -1 0 232872 0 0 0 7522 477 0 0 25 0 1 0 749672866 659361792 143227 4294967295 134512640 135726644 3221224576 3221186880 134782642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 160977 143228 300 300 0 160677 0
vsize: 643908
[startup+90.0026 s]
Raw data (loadavg): 0.98 0.97 0.91 2/55 19550
Raw data (stat): 19550 (pb2sat) R 19549 8378 8377 0 -1 0 249937 0 0 0 8486 514 0 0 25 0 1 0 749672866 734023680 160094 4294967295 134512640 135726644 3221224576 3221163380 134785185 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 179238 160095 300 300 0 178938 0
vsize: 716820
[startup+100.002 s]
Raw data (loadavg): 0.98 0.97 0.91 2/55 19550
Raw data (stat): 19550 (pb2sat) R 19549 8378 8377 0 -1 0 266262 0 0 0 9449 550 0 0 25 0 1 0 749672866 758456320 176229 4294967295 134512640 135726644 3221224576 3221222704 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185170 176229 300 300 0 184870 0
vsize: 740680
[startup+107.54 s]
Raw data (loadavg): 0.98 0.97 0.91 1/54 19550
Raw data (stat): 19550 (pb2sat) R 19549 8378 8377 0 -1 0 266262 0 0 0 9449 550 0 0 25 0 1 0 749672866 758456320 176229 4294967295 134512640 135726644 3221224576 3221222704 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185170 176229 300 300 0 184870 0
vsize: 0

Child status: 1
Real time (s): 107.54
CPU time (s): 107.537
CPU user time (s): 101.666
CPU system time (s): 5.87111
CPU usage (%): 99.9972
Max. virtual memory (Kb): 740680
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####