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 26644

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc27 THE 2005-05-24 16:46:50 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=11741 boxname=wulflinc27 idbench=904 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  9e4c4999c6f95fcef879d3d86840d71a  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-bm23.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-bm23.opb
IDLAUNCH: 11741
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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	: 3
cpu MHz		: 451.169
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:        898676 kB
Buffers:         34180 kB
Cached:          80180 kB
SwapCached:        628 kB
Active:          64896 kB
Inactive:        51908 kB
HighTotal:      131008 kB
HighFree:        47544 kB
LowTotal:       903652 kB
LowFree:        851132 kB
SwapTotal:     2097892 kB
SwapFree:      2096768 kB
Dirty:              48 kB
Writeback:           0 kB
Mapped:           5648 kB
Slab:            13512 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-24 16:48:06 (client local time) WITH STATUS 30 IN 75.9495 SECONDS
stats: 11741 0 75.9495 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 0.053 s
c Initial Lower Bound: 19
c Lower Bound Elapsed time: 0.0075
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 70 @ 8.16
c NEW SOLUTION FOUND: 57 @ 8.842
c NEW SOLUTION FOUND: 55 @ 11.965
c NEW SOLUTION FOUND: 53 @ 12.05
c NEW SOLUTION FOUND: 45 @ 16.256
c NEW SOLUTION FOUND: 41 @ 17.721
c NEW SOLUTION FOUND: 38 @ 53.462
c NEW SOLUTION FOUND: 35 @ 74.244
c NEW SOLUTION FOUND: 34 @ 74.376
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: 75.934 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
Raw data (loadavg): 0.75 0.90 0.96 2/54 5516
Raw data (stat): 5516 (runsolver) R 5515 3394 3393 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 831784490 1052672 99 4294967295 134512640 135381576 3221224480 3221219692 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0012 s]
Raw data (loadavg): 0.79 0.90 0.96 2/54 5516
Raw data (stat): 5516 (bsolo_lpr_cuts) R 5515 3394 3393 0 -1 0 5521 0 0 0 968 29 0 0 25 0 1 0 831784490 8540160 1355 4294967295 134512640 134714508 3221224592 3221221168 1076043462 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 2085 1355 1111 63 0 2022 0
vsize: 8340
[startup+20.0015 s]
Raw data (loadavg): 0.82 0.91 0.96 2/54 5516
Raw data (stat): 5516 (bsolo_lpr_cuts) R 5515 3394 3393 0 -1 0 10658 0 0 0 1935 61 0 0 25 0 1 0 831784490 11386880 2050 4294967295 134512640 134714508 3221224592 3221221484 1077386340 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 2780 2050 1111 63 0 2717 0
vsize: 11120
[startup+30.0026 s]
Raw data (loadavg): 0.85 0.91 0.96 2/54 5516
Raw data (stat): 5516 (bsolo_lpr_cuts) R 5515 3394 3393 0 -1 0 15488 0 0 0 2908 89 0 0 25 0 1 0 831784490 13938688 2671 4294967295 134512640 134714508 3221224592 3221221632 1075971414 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3361 2670 1111 63 0 3298 0
vsize: 13612
[startup+40.0024 s]
Raw data (loadavg): 0.87 0.91 0.96 2/54 5516
Raw data (stat): 5516 (bsolo_lpr_cuts) R 5515 3394 3393 0 -1 0 20237 0 0 0 3879 118 0 0 25 0 1 0 831784490 16187392 3266 4294967295 134512640 134714508 3221224592 3221223036 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3952 3266 1111 63 0 3889 0
vsize: 15808
[startup+50.0019 s]
Raw data (loadavg): 0.89 0.91 0.96 2/54 5516
Raw data (stat): 5516 (bsolo_lpr_cuts) R 5515 3394 3393 0 -1 0 24769 0 0 0 4853 144 0 0 25 0 1 0 831784490 18399232 3796 4294967295 134512640 134714508 3221224592 3221222704 1074867193 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4492 3796 1111 63 0 4429 0
vsize: 17968
[startup+60.0021 s]
Raw data (loadavg): 0.91 0.92 0.96 2/54 5516
Raw data (stat): 5516 (bsolo_lpr_cuts) R 5515 3394 3393 0 -1 0 29808 0 0 0 5829 168 0 0 25 0 1 0 831784490 20164608 4230 4294967295 134512640 134714508 3221224592 3221223052 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4923 4230 1111 63 0 4860 0
vsize: 19692
[startup+70.0063 s]
Raw data (loadavg): 0.92 0.92 0.96 2/54 5516
Raw data (stat): 5516 (bsolo_lpr_cuts) R 5515 3394 3393 0 -1 0 36536 0 0 0 6802 195 0 0 25 0 1 0 831784490 21340160 4522 4294967295 134512640 134714508 3221224592 3221223036 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5210 4522 1111 63 0 5147 0
vsize: 20840
[startup+75.9768 s]
Raw data (loadavg): 0.93 0.92 0.96 1/53 5516
Raw data (stat): 5516 (bsolo_lpr_cuts) R 5515 3394 3393 0 -1 0 36536 0 0 0 6802 195 0 0 25 0 1 0 831784490 21340160 4522 4294967295 134512640 134714508 3221224592 3221223036 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5210 4522 1111 63 0 5147 0
vsize: 0

Child status: 30
Real time (s): 75.9763
CPU time (s): 75.9495
CPU user time (s): 73.7938
CPU system time (s): 2.15567
CPU usage (%): 99.9647
Max. virtual memory (Kb): 20840
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	34
#### END VERIFIER DATA ####