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-bm23.opb
MD5SUM	9e4c4999c6f95fcef879d3d86840d71a
Bench Category	optimization, small integers (OPTSMALLINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	34
Optimality of the best value was proved	NO
Number of terms in the objective function	27
Biggest coefficient in the objective function	9
Number of bits for the biggest coefficient in the objective function	4
Sum of the numbers in the objective function	124
Number of bits of the sum of numbers in the objective function	7
Biggest number in a constraint	65
Number of bits of the biggest number in a constraint	7
Biggest sum of numbers in a constraint	182
Number of bits of the biggest sum of numbers	8
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	0.25796
Number of variables	27
Total number of constraints	47
Number of constraints which are clauses	0
Number of constraints which are cardinality constraints (but not clauses)	27
Number of constraints which are nor clauses,nor cardinality constraints	20
Minimum length of a constraint	1
Maximum length of a constraint	26

Trace number 39877

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-07 21:58:55 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=27948 boxname=wulflinc1 idbench=904 idsolver=20 numberseed=0
MD5SUM SOLVER: f6aa7fb267fa9710116626be7e6d3048  /oldhome/oroussel/solvers/bsolo_lpr-v2
MD5SUM BENCH:  9e4c4999c6f95fcef879d3d86840d71a  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-bm23.opb
REAL COMMAND:  bsolo_lpr-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-bm23.opb
IDLAUNCH: 27948
/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:        780088 kB
Buffers:         32492 kB
Cached:         197040 kB
SwapCached:       1192 kB
Active:          27964 kB
Inactive:       203848 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        779836 kB
SwapTotal:     2097136 kB
SwapFree:      2094852 kB
Dirty:               0 kB
Writeback:           0 kB
Mapped:           5736 kB
Slab:            17016 kB
Committed_AS:    92720 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-07 21:59:56 (client local time) WITH STATUS 30 IN 60.8048 SECONDS
stats: 27948 0 60.8048 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 27 variables and 20 constraints.
c After prepocess the problem consists of 27 variables and 20 constraints.
c preprocess terminated 0.057 s
c Initial Lower Bound: 19
c Lower Bound Elapsed time: 0.00475
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 57 @ 6.713
c NEW SOLUTION FOUND: 53 @ 10.149
c NEW SOLUTION FOUND: 45 @ 13.839
c NEW SOLUTION FOUND: 41 @ 15.374
c NEW SOLUTION FOUND: 38 @ 44.233
c NEW SOLUTION FOUND: 35 @ 59.712
c NEW SOLUTION FOUND: 34 @ 60.729
s OPTIMUM FOUND
v -C101_bit0 -C102_bit0 C103_bit0 -C104_bit0 C105_bit0 -C106_bit0 -C107_bit0 -C108_bit0 C109_bit0 -C110_bit0 -C111_bit0 -C112_bit0 -C113_bit0 -C114_bit0 C115_bit0 -C116_bit0 C117_bit0 -C118_bit0 -C119_bit0 C120_bit0 -C121_bit0 C122_bit0 -C123_bit0 -C124_bit0 -C125_bit0 -C126_bit0 C127_bit0 
c Exit Code: 30
c Total time: 60.792 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): 0.69 0.89 0.89 2/55 12158
Raw data (stat): 12158 (runsolver) R 12157 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 839560658 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+10.001 s]
Raw data (loadavg): 0.74 0.90 0.89 2/55 12158
Raw data (stat): 12158 (bsolo_lpr-v2) R 12157 8378 8377 0 -1 0 5645 0 0 0 965 32 0 0 25 0 1 0 839560658 8458240 1366 4294967295 134512640 134716908 3221224576 3221221888 1075006831 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 2109 1367 1111 63 0 2046 0
vsize: 8260
[startup+20.0007 s]
Raw data (loadavg): 0.78 0.90 0.89 2/55 12158
Raw data (stat): 12158 (bsolo_lpr-v2) R 12157 8378 8377 0 -1 0 10540 0 0 0 1932 65 0 0 25 0 1 0 839560658 11116544 2019 4294967295 134512640 134716908 3221224576 3221222224 1075818338 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 2714 2019 1111 63 0 2651 0
vsize: 10856
[startup+30.0005 s]
Raw data (loadavg): 0.81 0.90 0.89 2/55 12158
Raw data (stat): 12158 (bsolo_lpr-v2) R 12157 8378 8377 0 -1 0 15176 0 0 0 2902 95 0 0 25 0 1 0 839560658 13660160 2594 4294967295 134512640 134716908 3221224576 3221220572 1074786323 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3293 2593 1111 63 0 3230 0
vsize: 13340
[startup+40.0003 s]
Raw data (loadavg): 0.84 0.91 0.89 2/55 12158
Raw data (stat): 12158 (bsolo_lpr-v2) R 12157 8378 8377 0 -1 0 19423 0 0 0 3875 122 0 0 25 0 1 0 839560658 15654912 3082 4294967295 134512640 134716908 3221224576 3221221152 1076045796 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3822 3082 1111 63 0 3759 0
vsize: 15288
[startup+50.0001 s]
Raw data (loadavg): 0.86 0.91 0.89 2/55 12158
Raw data (stat): 12158 (bsolo_lpr-v2) R 12157 8378 8377 0 -1 0 24252 0 0 0 4851 147 0 0 25 0 1 0 839560658 17223680 3511 4294967295 134512640 134716908 3221224576 3221222864 1074153672 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4205 3511 1111 63 0 4142 0
vsize: 16820
[startup+60.0005 s]
Raw data (loadavg): 0.88 0.91 0.89 2/55 12158
Raw data (stat): 12158 (bsolo_lpr-v2) R 12157 8378 8377 0 -1 0 29540 0 0 0 5822 176 0 0 25 0 1 0 839560658 19132416 3977 4294967295 134512640 134716908 3221224576 3221222264 1077378421 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4671 3977 1111 63 0 4608 0
vsize: 18684
[startup+60.8252 s]
Raw data (loadavg): 0.88 0.91 0.89 1/54 12158
Raw data (stat): 12158 (bsolo_lpr-v2) R 12157 8378 8377 0 -1 0 29540 0 0 0 5822 176 0 0 25 0 1 0 839560658 19132416 3977 4294967295 134512640 134716908 3221224576 3221222264 1077378421 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 4671 3977 1111 63 0 4608 0
vsize: 0

Child status: 30
Real time (s): 60.825
CPU time (s): 60.8048
CPU user time (s): 59.009
CPU system time (s): 1.79573
CPU usage (%): 99.9668
Max. virtual memory (Kb): 18684
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	34
#### END VERIFIER DATA ####