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-seymour1.opb
MD5SUM	6ce78c8c12f3a600932e30ddb0640345
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	64128
Optimality of the best value was proved	NO
Number of terms in the objective function	7819
Biggest coefficient in the objective function	128
Number of bits for the biggest coefficient in the objective function	8
Sum of the numbers in the objective function	292583
Number of bits of the sum of numbers in the objective function	19
Biggest number in a constraint	128
Number of bits of the biggest number in a constraint	8
Biggest sum of numbers in a constraint	292583
Number of bits of the biggest sum of numbers	19
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1175.27
Number of variables	7819
Total number of constraints	6316
Number of constraints which are clauses	651
Number of constraints which are cardinality constraints (but not clauses)	451
Number of constraints which are nor clauses,nor cardinality constraints	5214
Minimum length of a constraint	1
Maximum length of a constraint	144

Trace number 13935

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc8 THE 2005-04-20 22:36:10 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=19822 boxname=wulflinc8 idbench=1525 idsolver=10 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6ce78c8c12f3a600932e30ddb0640345  /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-13-7-seymour1.opb
REAL COMMAND:  minisat+ -ca /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-13-7-seymour1.opb /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-13-7-seymour1.opb
IDLAUNCH: 19822
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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	: 2
cpu MHz		: 451.007
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:        674888 kB
Buffers:         33668 kB
Cached:         302864 kB
SwapCached:          0 kB
Active:          99700 kB
Inactive:       239704 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        674636 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           6948 kB
Slab:            14616 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-20 22:36:12 (client local time) WITH STATUS 0 IN 1.3208 SECONDS
stats: 19822 7 1.3208 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
#### 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 0.97 0.92 2/54 17214
Raw data (stat): 17214 (runsolver) R 17213 26667 26666 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 468300493 1052672 99 4294967295 134512640 135381576 3221224448 3221219692 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+1.33211 s]
Raw data (loadavg): 0.87 0.97 0.92 1/53 17214
Raw data (stat): 17214 (runsolver) R 17213 26667 26666 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 468300493 1052672 99 4294967295 134512640 135381576 3221224448 3221219692 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 1.33181
CPU time (s): 1.3208
CPU user time (s): 1.19082
CPU system time (s): 0.12998
CPU usage (%): 99.1732
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####