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-scfxm2.opb
MD5SUM	3611fc20088602fa99726273d52175c6
Bench Category	optimization, big integers (OPTBIGINT)
Has Objective Function	YES
Satisfiable	NO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function	920
Biggest coefficient in the objective function	5242880
Number of bits for the biggest coefficient in the objective function	23
Sum of the numbers in the objective function	274726650
Number of bits of the sum of numbers in the objective function	29
Biggest number in a constraint	52428800000
Number of bits of the biggest number in a constraint	36
Biggest sum of numbers in a constraint	319170501375
Number of bits of the biggest sum of numbers	39
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.631903
Number of variables	18280
Total number of constraints	660
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	660
Minimum length of a constraint	20
Maximum length of a constraint	1140

Trace number 35477

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-28 13:17:04 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24776 boxname=wulflinc31 idbench=1248 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  3611fc20088602fa99726273d52175c6  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-scfxm2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-scfxm2.opb
IDLAUNCH: 24776
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
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		: 451.153
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        827356 kB
Buffers:         35752 kB
Cached:         148564 kB
SwapCached:       1052 kB
Active:          84068 kB
Inactive:       102488 kB
HighTotal:      131008 kB
HighFree:          336 kB
LowTotal:       903652 kB
LowFree:        827020 kB
SwapTotal:     2097892 kB
SwapFree:      2095928 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5108 kB
Slab:            15120 kB
Committed_AS:    63812 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:18:55 (client local time) WITH STATUS 1 IN 110.336 SECONDS
stats: 24776 7 110.336 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): 0.85 0.97 0.91 2/55 20417
Raw data (stat): 20417 (runsolver) R 20416 29618 29617 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865075689 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+10.0009 s]
Raw data (loadavg): 0.87 0.97 0.91 2/55 20417
Raw data (stat): 20417 (pb2sat) R 20416 29618 29617 0 -1 0 32320 0 0 0 928 71 0 0 25 0 1 0 865075689 92614656 21156 4294967295 134512640 135726644 3221224576 3221205748 134772601 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22611 21156 300 300 0 22311 0
vsize: 90444
[startup+20.0007 s]
Raw data (loadavg): 0.89 0.97 0.91 2/55 20417
Raw data (stat): 20417 (pb2sat) R 20416 29618 29617 0 -1 0 57231 0 0 0 1879 120 0 0 25 0 1 0 865075689 164818944 35102 4294967295 134512640 135726644 3221224576 3221108776 135281613 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 40239 35102 300 300 0 39939 0
vsize: 160956
[startup+30.0017 s]
Raw data (loadavg): 0.91 0.97 0.91 2/55 20417
Raw data (stat): 20417 (pb2sat) R 20416 29618 29617 0 -1 0 95545 0 0 0 2801 198 0 0 25 0 1 0 865075689 319246336 51749 4294967295 134512640 135726644 3221224576 3221114544 134780450 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 77941 51749 300 300 0 77641 0
vsize: 311764
[startup+40.0031 s]
Raw data (loadavg): 0.92 0.97 0.91 2/55 20419
Raw data (stat): 20417 (pb2sat) R 20416 29618 29617 0 -1 0 112262 0 0 0 3771 228 0 0 25 0 1 0 865075689 334925824 68235 4294967295 134512640 135726644 3221224576 3221114600 135280732 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81769 68235 300 300 0 81469 0
vsize: 327076
[startup+50.0055 s]
Raw data (loadavg): 0.93 0.97 0.91 2/55 20419
Raw data (stat): 20417 (pb2sat) R 20416 29618 29617 0 -1 0 156341 0 0 0 4693 307 0 0 25 0 1 0 865075689 545271808 111153 4294967295 134512640 135726644 3221224576 3221118668 135297992 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 133123 111153 300 300 0 132823 0
vsize: 532492
[startup+60.0055 s]
Raw data (loadavg): 0.94 0.97 0.91 2/55 20419
Raw data (stat): 20417 (pb2sat) R 20416 29618 29617 0 -1 0 190228 0 0 0 5617 382 0 0 25 0 1 0 865075689 571781120 101839 4294967295 134512640 135726644 3221224576 3221118396 135281503 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 139595 101839 300 300 0 139295 0
vsize: 558380
[startup+70.0061 s]
Raw data (loadavg): 0.95 0.97 0.91 2/55 20419
Raw data (stat): 20417 (pb2sat) R 20416 29618 29617 0 -1 0 202397 0 0 0 6595 404 0 0 25 0 1 0 865075689 610066432 113807 4294967295 134512640 135726644 3221224576 3221120248 134604465 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 148942 113807 300 300 0 148642 0
vsize: 595768
[startup+80.0063 s]
Raw data (loadavg): 0.96 0.97 0.91 2/55 20419
Raw data (stat): 20417 (pb2sat) R 20416 29618 29617 0 -1 0 222303 0 0 0 7560 440 0 0 25 0 1 0 865075689 639135744 133479 4294967295 134512640 135726644 3221224576 3221119036 134604424 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156039 133479 300 300 0 155739 0
vsize: 624156
[startup+90.0064 s]
Raw data (loadavg): 0.96 0.97 0.91 2/55 20419
Raw data (stat): 20417 (pb2sat) R 20416 29618 29617 0 -1 0 240758 0 0 0 8523 477 0 0 25 0 1 0 865075689 716099584 151718 4294967295 134512640 135726644 3221224576 3221119744 134780351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 174829 151718 300 300 0 174529 0
vsize: 699316
[startup+100.012 s]
Raw data (loadavg): 0.97 0.97 0.91 2/55 20421
Raw data (stat): 20417 (pb2sat) R 20416 29618 29617 0 -1 0 258095 0 0 0 9491 509 0 0 25 0 1 0 865075689 741240832 168850 4294967295 134512640 135726644 3221224576 3221126736 134607282 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 180967 168850 300 300 0 180667 0
vsize: 723868
[startup+110.013 s]
Raw data (loadavg): 0.97 0.97 0.91 2/55 20421
Raw data (stat): 20417 (pb2sat) R 20416 29618 29617 0 -1 0 259682 0 0 0 10474 527 0 0 25 0 1 0 865075689 392257536 95331 4294967295 134512640 135726644 3221224576 3221222920 135280487 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 95766 95331 300 300 0 95466 0
vsize: 383064
[startup+110.337 s]
Raw data (loadavg): 0.97 0.97 0.91 1/54 20421
Raw data (stat): 20417 (pb2sat) R 20416 29618 29617 0 -1 0 259682 0 0 0 10474 527 0 0 25 0 1 0 865075689 392257536 95331 4294967295 134512640 135726644 3221224576 3221222920 135280487 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 95766 95331 300 300 0 95466 0
vsize: 0

Child status: 1
Real time (s): 110.337
CPU time (s): 110.336
CPU user time (s): 104.858
CPU system time (s): 5.47817
CPU usage (%): 99.9994
Max. virtual memory (Kb): 723868
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####