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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-pilot.we.opb
MD5SUM	9228fcb33929c7b5e80529359154089f
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	1840
Biggest coefficient in the objective function	111935488000000000
Number of bits for the biggest coefficient in the objective function	57
Sum of the numbers in the objective function	5990082122274938325
Number of bits of the sum of numbers in the objective function	63
Biggest number in a constraint	111935488000000000
Number of bits of the biggest number in a constraint	57
Biggest sum of numbers in a constraint	5990082122274938325
Number of bits of the biggest sum of numbers	63
Best result obtained on this benchmark	UNSAT
Best CPU time to get the best result obtained on this benchmark	1.3408
Number of variables	52626
Total number of constraints	1016
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	1016
Minimum length of a constraint	7
Maximum length of a constraint	1620

Trace number 33992

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc24 THE 2005-05-27 18:55:23 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=16102 boxname=wulflinc24 idbench=1239 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322  /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH:  9228fcb33929c7b5e80529359154089f  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-13-7-pilot.we.opb
REAL COMMAND:  vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-13-7-pilot.we.opb 0
IDLAUNCH: 16102
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.080
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	: 3
cpu MHz		: 451.080
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:        700488 kB
Buffers:         31640 kB
Cached:         280384 kB
SwapCached:        640 kB
Active:          50116 kB
Inactive:       264004 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        700236 kB
SwapTotal:     2097892 kB
SwapFree:      2096352 kB
Dirty:             112 kB
Writeback:           0 kB
Mapped:           5120 kB
Slab:            14392 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-27 18:55:25 (client local time) WITH STATUS 20 IN 1.3408 SECONDS
stats: 16102 7 1.3408 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
result: proof of false found (0)
times:
0m0.020s 0m0.008s
0m1.174s 0m0.082s
s UNSATISFIABLE
#### 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): 0.93 0.98 0.91 2/54 13785
Raw data (stat): 13785 (runsolver) R 13784 4613 4612 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 858482675 884736 94 4294967295 134512640 135332820 3221224448 3221219612 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+1.67711 s]
Raw data (loadavg): 0.93 0.98 0.91 1/53 13792
Raw data (stat): 13785 (runsolver) R 13784 4613 4612 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 858482675 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 0

Child status: 20
Real time (s): 1.67688
CPU time (s): 1.3408
CPU user time (s): 1.22181
CPU system time (s): 0.118981
CPU usage (%): 79.9578
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####