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/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-neos6.opb
MD5SUM	0633214154e8bab02f648560b9bfa54f
Bench Category	optimization, medium integers (OPTMEDINT)
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	4460
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	233832225
Number of bits of the sum of numbers in the objective function	28
Biggest number in a constraint	524288
Number of bits of the biggest number in a constraint	20
Biggest sum of numbers in a constraint	233832225
Number of bits of the biggest sum of numbers	28
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	0.18697
Number of variables	17260
Total number of constraints	9376
Number of constraints which are clauses	48
Number of constraints which are cardinality constraints (but not clauses)	9095
Number of constraints which are nor clauses,nor cardinality constraints	233
Minimum length of a constraint	1
Maximum length of a constraint	834

Trace number 35736

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc7 THE 2005-05-28 13:58:38 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25046 boxname=wulflinc7 idbench=1518 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  0633214154e8bab02f648560b9bfa54f  /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-neos6.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-neos6.opb
IDLAUNCH: 25046
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.050
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		: 451.050
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:        725924 kB
Buffers:         33460 kB
Cached:         253604 kB
SwapCached:        644 kB
Active:          22760 kB
Inactive:       266304 kB
HighTotal:      131008 kB
HighFree:         3472 kB
LowTotal:       903652 kB
LowFree:        722452 kB
SwapTotal:     2097136 kB
SwapFree:      2095560 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5108 kB
Slab:            13888 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 14:00:23 (client local time) WITH STATUS 1 IN 104.825 SECONDS
stats: 25046 7 104.825 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): 0.90 0.93 0.90 1/54 10894
Raw data (stat): 10894 (runsolver) R 10893 24300 24299 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 807132320 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+9.99977 s]
Raw data (loadavg): 0.92 0.93 0.91 2/54 10894
Raw data (stat): 10894 (pb2sat) R 10893 24300 24299 0 -1 0 27385 0 0 0 937 61 0 0 25 0 1 0 807132320 87298048 16409 4294967295 134512640 135726644 3221224592 3219743744 134554574 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21313 16409 300 300 0 21013 0
vsize: 85252
[startup+20.0005 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 10894
Raw data (stat): 10894 (pb2sat) R 10893 24300 24299 0 -1 0 56915 0 0 0 1876 123 0 0 25 0 1 0 807132320 174641152 34970 4294967295 134512640 135726644 3221224592 3220336864 134767189 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42637 34972 300 300 0 42337 0
vsize: 170548
[startup+29.9998 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 10894
Raw data (stat): 10894 (pb2sat) R 10893 24300 24299 0 -1 0 98309 0 0 0 2790 210 0 0 25 0 1 0 807132320 299417600 54672 4294967295 134512640 135726644 3221224592 3220179272 134766301 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73100 54673 300 300 0 72800 0
vsize: 292400
[startup+40.0015 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 10894
Raw data (stat): 10894 (pb2sat) R 10893 24300 24299 0 -1 0 115981 0 0 0 3750 250 0 0 25 0 1 0 807132320 349327360 72100 4294967295 134512640 135726644 3221224592 3220550456 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85285 72100 300 300 0 84985 0
vsize: 341140
[startup+50.0021 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 10894
Raw data (stat): 10894 (pb2sat) R 10893 24300 24299 0 -1 0 159782 0 0 0 4664 336 0 0 25 0 1 0 807132320 560062464 114801 4294967295 134512640 135726644 3221224592 3220731776 134771729 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 136734 114804 300 300 0 136434 0
vsize: 546936
[startup+60.0018 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 10894
Raw data (stat): 10894 (pb2sat) R 10893 24300 24299 0 -1 0 196480 0 0 0 5572 428 0 0 25 0 1 0 807132320 628785152 109242 4294967295 134512640 135726644 3221224592 3220925216 134780450 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153512 109242 300 300 0 153212 0
vsize: 614048
[startup+70.0021 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 10894
Raw data (stat): 10894 (pb2sat) R 10893 24300 24299 0 -1 0 207549 0 0 0 6546 454 0 0 25 0 1 0 807132320 628785152 120108 4294967295 134512640 135726644 3221224592 3221221300 135277538 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153512 120108 300 300 0 153212 0
vsize: 614048
[startup+80.0024 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 10894
Raw data (stat): 10894 (pb2sat) R 10893 24300 24299 0 -1 0 219624 0 0 0 7516 484 0 0 25 0 1 0 807132320 628785152 131960 4294967295 134512640 135726644 3221224592 3220913868 134604400 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153512 131961 300 300 0 153212 0
vsize: 614048
[startup+90.0026 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 10947
Raw data (stat): 10894 (pb2sat) R 10893 24300 24299 0 -1 0 230122 0 0 0 8487 513 0 0 25 0 1 0 807132320 679116800 142262 4294967295 134512640 135726644 3221224592 3221154192 134766384 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 165800 142262 300 300 0 165500 0
vsize: 663200
[startup+100.003 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 10947
Raw data (stat): 10894 (pb2sat) R 10893 24300 24299 0 -1 0 243036 0 0 0 9456 543 0 0 25 0 1 0 807132320 679116800 154939 4294967295 134512640 135726644 3221224592 3221221136 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 165800 154939 300 300 0 165500 0
vsize: 663200
[startup+104.828 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 10947
Raw data (stat): 10894 (pb2sat) R 10893 24300 24299 0 -1 0 243036 0 0 0 9456 543 0 0 25 0 1 0 807132320 679116800 154939 4294967295 134512640 135726644 3221224592 3221221136 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 165800 154939 300 300 0 165500 0
vsize: 0

Child status: 1
Real time (s): 104.827
CPU time (s): 104.825
CPU user time (s): 99.0509
CPU system time (s): 5.77412
CPU usage (%): 99.9981
Max. virtual memory (Kb): 663200
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####