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/web/uclid_pb_benchmarks/normalized-ooo.burch_dill.6.accl.ucl.opb
MD5SUM	f306f9e77db4c563a096b79aebdedeaa
Bench Category	no optimization function (SAT)
Has Objective Function	NO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function	0
Biggest coefficient in the objective function	0
Number of bits for the biggest coefficient in the objective function	0
Sum of the numbers in the objective function	0
Number of bits of the sum of numbers in the objective function	0
Biggest number in a constraint	71
Number of bits of the biggest number in a constraint	7
Biggest sum of numbers in a constraint	261
Number of bits of the biggest sum of numbers	9
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables	23621
Total number of constraints	67526
Number of constraints which are clauses	65126
Number of constraints which are cardinality constraints (but not clauses)	0
Number of constraints which are nor clauses,nor cardinality constraints	2400
Minimum length of a constraint	1
Maximum length of a constraint	13

Trace number 2657

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc7 THE 2005-04-13 04:45:14 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2686 boxname=wulflinc7 idbench=299 idsolver=4 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  f306f9e77db4c563a096b79aebdedeaa  /oldhome/oroussel/tmp/wulflinc7/normalized-ooo.burch_dill.6.accl.ucl.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc7/normalized-ooo.burch_dill.6.accl.ucl.opb
IDLAUNCH: 2686
/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:        905708 kB
Buffers:         35144 kB
Cached:          73928 kB
SwapCached:          0 kB
Active:          76296 kB
Inactive:        35936 kB
HighTotal:      131008 kB
HighFree:        52416 kB
LowTotal:       903652 kB
LowFree:        853292 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           7284 kB
Slab:            11184 kB
Committed_AS:    63824 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-13 04:45:19 (client local time) WITH STATUS 0 IN  SECONDS
stats: 2686 7  0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Decisions:	0
c Implications:	39
c RUNTIME:	4.66229s
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): 0.99 1.00 0.93 2/54 17122
Raw data (stat): 17122 (runsolver) R 17121 8501 8500 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 414955023 1056768 100 4294967295 134512640 135381576 3221221728 3221216484 135158418 0 0 7 90112 0 0 0 17 1 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+4.89351 s]
Raw data (loadavg): 0.99 1.00 0.93 1/53 17122
Raw data (stat): 17122 (runsolver) R 17121 8501 8500 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 414955023 1056768 100 4294967295 134512640 135381576 3221221728 3221216484 135158418 0 0 7 90112 0 0 0 17 1 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 0

Child status: 0
Real time (s): 4.89279
CPU time (s): 4.88526
CPU user time (s): 4.77927
CPU system time (s): 0.105983
CPU usage (%): 99.8461
Max. virtual memory (Kb): 1032
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####