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/MIPLIB/miplib/normalized-mps-v2-20-10-pipex.opb
MD5SUM	b9c1029cc1d97a8d60e984f96f5d3267
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	788263
Optimality of the best value was proved	NO
Number of terms in the objective function	48
Biggest coefficient in the objective function	107865
Number of bits for the biggest coefficient in the objective function	17
Sum of the numbers in the objective function	2514082
Number of bits of the sum of numbers in the objective function	22
Biggest number in a constraint	107865
Number of bits of the biggest number in a constraint	17
Biggest sum of numbers in a constraint	2514082
Number of bits of the biggest sum of numbers	22
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	1.02184
Number of variables	48
Total number of constraints	73
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	64
Number of constraints which are nor clauses,nor cardinality constraints	9
Minimum length of a constraint	1
Maximum length of a constraint	16

Trace number 39912

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-07 22:39:31 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=27983 boxname=wulflinc1 idbench=939 idsolver=20 numberseed=0
MD5SUM SOLVER: f6aa7fb267fa9710116626be7e6d3048  /oldhome/oroussel/solvers/bsolo_lpr-v2
MD5SUM BENCH:  b9c1029cc1d97a8d60e984f96f5d3267  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-pipex.opb
REAL COMMAND:  bsolo_lpr-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-pipex.opb
IDLAUNCH: 27983
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        779520 kB
Buffers:         32568 kB
Cached:         197712 kB
SwapCached:       1192 kB
Active:          30672 kB
Inactive:       201856 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        779268 kB
SwapTotal:     2097136 kB
SwapFree:      2094852 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5736 kB
Slab:            16832 kB
Committed_AS:    92720 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-07 22:40:16 (client local time) WITH STATUS 30 IN 44.5742 SECONDS
stats: 27983 0 44.5742 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 48 variables and 41 constraints.
c After prepocess the problem consists of 48 variables and 41 constraints.
c preprocess terminated 0.054 s
c Initial Lower Bound: 773752
c Lower Bound Elapsed time: 0.00475
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 802321 @ 0.597
c NEW SOLUTION FOUND: 794954 @ 15.205
c NEW SOLUTION FOUND: 794342 @ 42.394
c NEW SOLUTION FOUND: 788263 @ 42.538
s OPTIMUM FOUND
v QUAN0101_bit0 QUAN0102_bit0 -QUAN0103_bit0 -QUAN0104_bit0 -QUAN0105_bit0 -QUAN0106_bit0 -QUAN0107_bit0 -QUAN0108_bit0 -QUAN0109_bit0 -QUAN0110_bit0 QUAN0111_bit0 -QUAN0112_bit0 QUAN0113_bit0 -QUAN0114_bit0 -QUAN0115_bit0 -QUAN0116_bit0 -QUAN0201_bit0 -QUAN0202_bit0 -QUAN0203_bit0 -QUAN0204_bit0 -QUAN0205_bit0 -QUAN0206_bit0 QUAN0207_bit0 QUAN0208_bit0 -QUAN0209_bit0 -QUAN0210_bit0 -QUAN0211_bit0 QUAN0212_bit0 -QUAN0213_bit0 QUAN0214_bit0 QUAN0215_bit0 QUAN0216_bit0 -QUAN0301_bit0 -QUAN0302_bit0 QUAN0303_bit0 QUAN0304_bit0 QUAN0305_bit0 QUAN0306_bit0 -QUAN0307_bit0 -QUAN0308_bit0 QUAN0309_bit0 QUAN0310_bit0 -QUAN0311_bit0 -QUAN0312_bit0 -QUAN0313_bit0 -QUAN0314_bit0 -QUAN0315_bit0 -QUAN0316_bit0 
c Exit Code: 30
c Total time: 44.56 s
#### 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): 0.91 0.95 0.90 2/55 12496
Raw data (stat): 12496 (runsolver) R 12495 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 839804292 884736 94 4294967295 134512640 135332820 3221224464 3221219644 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+10.0006 s]
Raw data (loadavg): 0.93 0.95 0.90 2/55 12496
Raw data (stat): 12496 (bsolo_lpr-v2) R 12495 8378 8377 0 -1 0 5485 0 0 0 966 31 0 0 25 0 1 0 839804292 8695808 1427 4294967295 134512640 134716908 3221224576 3221222888 1074138144 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 2123 1427 1111 63 0 2060 0
vsize: 8492
[startup+20.0005 s]
Raw data (loadavg): 0.94 0.96 0.91 2/55 12496
Raw data (stat): 12496 (bsolo_lpr-v2) R 12495 8378 8377 0 -1 0 9780 0 0 0 1938 59 0 0 25 0 1 0 839804292 10952704 1935 4294967295 134512640 134716908 3221224576 3221221420 1077782939 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 2674 1935 1111 63 0 2611 0
vsize: 10696
[startup+30.0012 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 12496
Raw data (stat): 12496 (bsolo_lpr-v2) R 12495 8378 8377 0 -1 0 14027 0 0 0 2910 87 0 0 25 0 1 0 839804292 12881920 2451 4294967295 134512640 134716908 3221224576 3221222416 1075798881 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3145 2451 1111 63 0 3082 0
vsize: 12580
[startup+40.001 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 12496
Raw data (stat): 12496 (bsolo_lpr-v2) R 12495 8378 8377 0 -1 0 18279 0 0 0 3884 113 0 0 25 0 1 0 839804292 14921728 2950 4294967295 134512640 134716908 3221224576 3221222972 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3643 2950 1111 63 0 3580 0
vsize: 14572
[startup+44.6001 s]
Raw data (loadavg): 0.96 0.96 0.91 1/54 12496
Raw data (stat): 12496 (bsolo_lpr-v2) R 12495 8378 8377 0 -1 0 18279 0 0 0 3884 113 0 0 25 0 1 0 839804292 14921728 2950 4294967295 134512640 134716908 3221224576 3221222972 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3643 2950 1111 63 0 3580 0
vsize: 0

Child status: 30
Real time (s): 44.5999
CPU time (s): 44.5742
CPU user time (s): 43.2994
CPU system time (s): 1.27481
CPU usage (%): 99.9425
Max. virtual memory (Kb): 14572
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	788263
#### END VERIFIER DATA ####