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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-woodw.opb
MD5SUM	5d2b367438a64c72c01ca61f03388807
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	120
Biggest coefficient in the objective function	536870912
Number of bits for the biggest coefficient in the objective function	30
Sum of the numbers in the objective function	4294967292
Number of bits of the sum of numbers in the objective function	32
Biggest number in a constraint	10737418240000
Number of bits of the biggest number in a constraint	44
Biggest sum of numbers in a constraint	556588032595749
Number of bits of the biggest sum of numbers	49
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	2.36964
Number of variables	252150
Total number of constraints	1098
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	1098
Minimum length of a constraint	30
Maximum length of a constraint	43590

Trace number 31822

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc26 THE 2005-05-27 06:33:40 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=23249 boxname=wulflinc26 idbench=893 idsolver=16 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  5d2b367438a64c72c01ca61f03388807  /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-woodw.opb
REAL COMMAND:  minisat+_script -cb -gs /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-20-10-woodw.opb
IDLAUNCH: 23249
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.061
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		: 451.061
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:        797164 kB
Buffers:         33064 kB
Cached:         182896 kB
SwapCached:        756 kB
Active:          76816 kB
Inactive:       141408 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        796912 kB
SwapTotal:     2097892 kB
SwapFree:      2096400 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5248 kB
Slab:            13660 kB
Committed_AS:    63736 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-27 06:34:52 (client local time) WITH STATUS 20 IN 70.0883 SECONDS
stats: 23249 7 70.0883 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c Converting 1647 PB-constraints to clauses...
c   -- Unit propagations: ppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp  -- Detecting intervals from adjacent constraints: ##########################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################
c   -- Clauses(.)/Splits(s): s
s UNSATISFIABLE
c _______________________________________________________________________________
c 
c restarts              : 0
c conflicts             : 0              (0 /sec)
c decisions             : 0              (0 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 68.8875 s
c _______________________________________________________________________________
#### 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): 0.94 0.96 0.91 1/54 16141
Raw data (stat): 16141 (runsolver) D 16140 20687 20686 0 -1 64 4 0 0 0 0 0 0 0 18 0 1 0 854040700 1052672 99 4294967295 134512640 135381576 3221224464 3221219672 135158418 0 2147483391 7 90112 3225161850 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0009 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 16145
Raw data (stat): 16141 (minisat+_script) S 16140 20687 20686 0 -1 0 275 239 0 0 0 0 0 0 17 0 1 0 854040700 2174976 226 4294967295 134512640 135087896 3221224528 3221223800 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 531 226 485 147 0 384 0
vsize: 2124
[startup+20.0017 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 16145
Raw data (stat): 16141 (minisat+_script) S 16140 20687 20686 0 -1 0 275 239 0 0 0 0 0 0 17 0 1 0 854040700 2174976 226 4294967295 134512640 135087896 3221224528 3221223800 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 531 226 485 147 0 384 0
vsize: 2124
[startup+30.0011 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 16145
Raw data (stat): 16141 (minisat+_script) S 16140 20687 20686 0 -1 0 275 239 0 0 0 0 0 0 17 0 1 0 854040700 2174976 226 4294967295 134512640 135087896 3221224528 3221223800 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 531 226 485 147 0 384 0
vsize: 2124
[startup+40.0017 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 16145
Raw data (stat): 16141 (minisat+_script) S 16140 20687 20686 0 -1 0 275 239 0 0 0 0 0 0 17 0 1 0 854040700 2174976 226 4294967295 134512640 135087896 3221224528 3221223800 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 531 226 485 147 0 384 0
vsize: 2124
[startup+50.0024 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 16145
Raw data (stat): 16141 (minisat+_script) S 16140 20687 20686 0 -1 0 275 239 0 0 0 0 0 0 17 0 1 0 854040700 2174976 226 4294967295 134512640 135087896 3221224528 3221223800 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 531 226 485 147 0 384 0
vsize: 2124
[startup+60.0034 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 16145
Raw data (stat): 16141 (minisat+_script) S 16140 20687 20686 0 -1 0 275 239 0 0 0 0 0 0 17 0 1 0 854040700 2174976 226 4294967295 134512640 135087896 3221224528 3221223800 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 531 226 485 147 0 384 0
vsize: 2124
[startup+70.0038 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 16145
Raw data (stat): 16141 (minisat+_script) S 16140 20687 20686 0 -1 0 275 239 0 0 0 0 0 0 17 0 1 0 854040700 2174976 226 4294967295 134512640 135087896 3221224528 3221223800 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 531 226 485 147 0 384 0
vsize: 2124
[startup+70.2303 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 16145
Raw data (stat): 16141 (minisat+_script) S 16140 20687 20686 0 -1 0 275 239 0 0 0 0 0 0 17 0 1 0 854040700 2174976 226 4294967295 134512640 135087896 3221224528 3221223800 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 531 226 485 147 0 384 0
vsize: 0

Child status: 20
Real time (s): 70.23
CPU time (s): 70.0883
CPU user time (s): 68.8925
CPU system time (s): 1.19582
CPU usage (%): 99.7983
Max. virtual memory (Kb): 2124
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####