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-dano3_5.opb
MD5SUM	eaead9cf67652e4b2ad71612149d4439
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	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	131072000
Number of bits of the biggest number in a constraint	27
Biggest sum of numbers in a constraint	576307709
Number of bits of the biggest sum of numbers	30
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	303.797
Number of variables	269983
Total number of constraints	3778
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	120
Number of constraints which are nor clauses,nor cardinality constraints	3658
Minimum length of a constraint	1
Maximum length of a constraint	10600

Trace number 17494

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc25 THE 2005-04-21 10:36:01 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=19465 boxname=wulflinc25 idbench=1498 idsolver=4 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  eaead9cf67652e4b2ad71612149d4439  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-dano3_5.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-13-7-dano3_5.opb
IDLAUNCH: 19465
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
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		: 451.220
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:        504524 kB
Buffers:         23248 kB
Cached:         486084 kB
SwapCached:        736 kB
Active:          74356 kB
Inactive:       437008 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        504272 kB
SwapTotal:     2097892 kB
SwapFree:      2096248 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           5028 kB
Slab:            13068 kB
Committed_AS:    63592 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-21 10:36:51 (client local time) WITH STATUS 0 IN 49.4455 SECONDS
stats: 19465 7 49.4455 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Decisions:	0
c Implications:	29301
c RUNTIME:	47.9837s
s UNKNOWN
#### 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
Raw data (loadavg): 0.87 0.94 0.90 2/54 2693
Raw data (stat): 2693 (runsolver) R 2692 28099 28098 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 544416968 1052672 99 4294967295 134512640 135381576 3221224528 3221219776 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0015 s]
Raw data (loadavg): 0.89 0.95 0.91 2/54 2693
Raw data (stat): 2693 (galena) R 2692 28099 28098 0 -1 0 3886 0 0 0 986 13 0 0 25 0 1 0 544416968 15622144 3540 4294967295 134512640 135412752 3221224624 3221222380 134851954 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 3814 3540 241 241 0 3573 0
vsize: 15256
[startup+20.0021 s]
Raw data (loadavg): 0.91 0.95 0.91 2/54 2693
Raw data (stat): 2693 (galena) R 2692 28099 28098 0 -1 0 8170 0 0 0 1976 23 0 0 25 0 1 0 544416968 31989760 7374 4294967295 134512640 135412752 3221224624 3221222300 134840880 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 7810 7374 241 241 0 7569 0
vsize: 31240
[startup+30.0018 s]
Raw data (loadavg): 0.92 0.95 0.91 2/54 2693
Raw data (stat): 2693 (galena) R 2692 28099 28098 0 -1 0 8405 0 0 0 2972 27 0 0 25 0 1 0 544416968 33017856 7609 4294967295 134512640 135412752 3221224624 3221222416 134617188 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8061 7609 241 241 0 7820 0
vsize: 32244
[startup+40.0026 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 2693
Raw data (stat): 2693 (galena) R 2692 28099 28098 0 -1 0 12555 0 0 0 3963 36 0 0 25 0 1 0 544416968 49954816 11759 4294967295 134512640 135412752 3221224624 3221222320 134667774 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 12196 11759 241 241 0 11955 0
vsize: 48784
[startup+49.4471 s]
Raw data (loadavg): 0.94 0.95 0.91 1/53 2693
Raw data (stat): 2693 (galena) R 2692 28099 28098 0 -1 0 12555 0 0 0 3963 36 0 0 25 0 1 0 544416968 49954816 11759 4294967295 134512640 135412752 3221224624 3221222320 134667774 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 12196 11759 241 241 0 11955 0
vsize: 0

Child status: 0
Real time (s): 49.4468
CPU time (s): 49.4455
CPU user time (s): 48.5776
CPU system time (s): 0.867868
CPU usage (%): 99.9974
Max. virtual memory (Kb): 48784
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####