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/miplib/normalized-mps-v2-13-7-air01.opb
MD5SUM	90db1995bd949fc5ac74143a523f3bcf
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	3398
Optimality of the best value was proved	NO
Number of terms in the objective function	771
Biggest coefficient in the objective function	3698
Number of bits for the biggest coefficient in the objective function	12
Sum of the numbers in the objective function	1192753
Number of bits of the sum of numbers in the objective function	21
Biggest number in a constraint	3698
Number of bits of the biggest number in a constraint	12
Biggest sum of numbers in a constraint	1192753
Number of bits of the biggest sum of numbers	21
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1.02884
Number of variables	771
Total number of constraints	794
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	794
Number of constraints which are nor clauses,nor cardinality constraints	0
Minimum length of a constraint	1
Maximum length of a constraint	438

Trace number 42761

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-16 14:26:32 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25978 boxname=wulflinc2 idbench=1278 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  90db1995bd949fc5ac74143a523f3bcf  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-air01.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-air01.opb
IDLAUNCH: 25978
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        698728 kB
Buffers:         11236 kB
Cached:         302456 kB
SwapCached:       1420 kB
Active:          24416 kB
Inactive:       291332 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        698476 kB
SwapTotal:     2097136 kB
SwapFree:      2094720 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            14384 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:28:38 (client local time) WITH STATUS 1 IN 125.974 SECONDS
stats: 25978 7 125.974 1
#### 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: 4827
c big objective detected
c trying from 0 to 511
c CONFLICT during preprocess 
c trying from 512 to 1023
c CONFLICT during preprocess 
c trying from 1024 to 1535

	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 0.93 0.90 1/54 12094
Raw data (stat): 12094 (runsolver) R 12093 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971477323 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0008 s]
Raw data (loadavg): 0.92 0.93 0.91 2/54 12094
Raw data (stat): 12094 (pb2sat-v2) R 12093 31399 31398 0 -1 0 27565 0 0 0 936 63 0 0 25 0 1 0 971477323 87777280 16522 4294967295 134512640 135730672 3221224576 3220900000 135282758 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21430 16524 301 301 0 21129 0
vsize: 85720
[startup+20.0011 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 12094
Raw data (stat): 12094 (pb2sat-v2) R 12093 31399 31398 0 -1 0 54869 0 0 0 1882 117 0 0 25 0 1 0 971477323 161599488 31854 4294967295 134512640 135730672 3221224576 3221222768 134813936 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 39453 31854 301 301 0 39152 0
vsize: 157812
[startup+30.0025 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 12094
Raw data (stat): 12094 (pb2sat-v2) R 12093 31399 31398 0 -1 0 69108 0 0 0 2851 147 0 0 25 0 1 0 971477323 255885312 45746 4294967295 134512640 135730672 3221224576 3221090112 134775359 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 62472 45748 301 301 0 62171 0
vsize: 249888
[startup+40.0029 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 12094
Raw data (stat): 12094 (pb2sat-v2) R 12093 31399 31398 0 -1 0 97342 0 0 0 3792 207 0 0 25 0 1 0 971477323 284688384 51989 4294967295 134512640 135730672 3221224576 3221085928 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 69504 51989 301 301 0 69203 0
vsize: 278016
[startup+50.0026 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 12094
Raw data (stat): 12094 (pb2sat-v2) R 12093 31399 31398 0 -1 0 115056 0 0 0 4755 244 0 0 25 0 1 0 971477323 330948608 69468 4294967295 134512640 135730672 3221224576 3220970272 134608047 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 80798 69468 301 301 0 80497 0
vsize: 323192
[startup+60.0029 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 12094
Raw data (stat): 12094 (pb2sat-v2) R 12093 31399 31398 0 -1 0 152352 0 0 0 5687 312 0 0 25 0 1 0 971477323 451997696 87170 4294967295 134512640 135730672 3221224576 3220993468 134607999 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 110351 87170 301 301 0 110050 0
vsize: 441404
[startup+70.0033 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 12094
Raw data (stat): 12094 (pb2sat-v2) R 12093 31399 31398 0 -1 0 162377 0 0 0 6664 335 0 0 25 0 1 0 971477323 462745600 93558 4294967295 134512640 135730672 3221224576 3221222616 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 112975 93558 301 301 0 112674 0
vsize: 451900
[startup+80.0038 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 12094
Raw data (stat): 12094 (pb2sat-v2) R 12093 31399 31398 0 -1 0 171822 0 0 0 7641 358 0 0 25 0 1 0 971477323 495996928 102970 4294967295 134512640 135730672 3221224576 3221166992 134786977 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 121093 102970 301 301 0 120792 0
vsize: 484372
[startup+90.0037 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 12094
Raw data (stat): 12094 (pb2sat-v2) R 12093 31399 31398 0 -1 0 204299 0 0 0 8566 433 0 0 25 0 1 0 971477323 596660224 110657 4294967295 134512640 135730672 3221224576 3220862744 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145669 110657 301 301 0 145368 0
vsize: 582676
[startup+100.003 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 12094
Raw data (stat): 12094 (pb2sat-v2) R 12093 31399 31398 0 -1 0 216775 0 0 0 9538 461 0 0 25 0 1 0 971477323 609636352 122884 4294967295 134512640 135730672 3221224576 3221066172 134788026 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 148837 122885 301 301 0 148536 0
vsize: 595348
[startup+110.004 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 12094
Raw data (stat): 12094 (pb2sat-v2) R 12093 31399 31398 0 -1 0 232678 0 0 0 10505 495 0 0 25 0 1 0 971477323 637751296 138550 4294967295 134512640 135730672 3221224576 3221193488 134770658 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155701 138550 301 301 0 155400 0
vsize: 622804
[startup+120.004 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 12094
Raw data (stat): 12094 (pb2sat-v2) R 12093 31399 31398 0 -1 0 244576 0 0 0 11483 517 0 0 25 0 1 0 971477323 674230272 150292 4294967295 134512640 135730672 3221224576 3221222828 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 164607 150292 301 301 0 164306 0
vsize: 658428
[startup+125.976 s]
Raw data (loadavg): 0.99 0.95 0.91 1/53 12094
Raw data (stat): 12094 (pb2sat-v2) R 12093 31399 31398 0 -1 0 244576 0 0 0 11483 517 0 0 25 0 1 0 971477323 674230272 150292 4294967295 134512640 135730672 3221224576 3221222828 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 164607 150292 301 301 0 164306 0
vsize: 0

Child status: 1
Real time (s): 125.975
CPU time (s): 125.974
CPU user time (s): 120.502
CPU system time (s): 5.47217
CPU usage (%): 99.9987
Max. virtual memory (Kb): 658428
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####