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/MIPLIB/miplib/normalized-mps-v2-13-7-misc01.opb
MD5SUM	c625a850881ad6f6b45ac56ea24bd563
Bench Category	optimization, medium integers (OPTMEDINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	1120576
Optimality of the best value was proved	NO
Number of terms in the objective function	21
Biggest coefficient in the objective function	1048576
Number of bits for the biggest coefficient in the objective function	21
Sum of the numbers in the objective function	2097151
Number of bits of the sum of numbers in the objective function	21
Biggest number in a constraint	1048576
Number of bits of the biggest number in a constraint	21
Biggest sum of numbers in a constraint	3441919
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	0.297953
Number of variables	103
Total number of constraints	136
Number of constraints which are clauses	15
Number of constraints which are cardinality constraints (but not clauses)	88
Number of constraints which are nor clauses,nor cardinality constraints	33
Minimum length of a constraint	1
Maximum length of a constraint	91

Trace number 41451

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-09 13:03:55 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=29519 boxname=wulflinc1 idbench=1303 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  c625a850881ad6f6b45ac56ea24bd563  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-misc01.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-misc01.opb
IDLAUNCH: 29519
/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:        587392 kB
Buffers:         29380 kB
Cached:         394208 kB
SwapCached:       1140 kB
Active:          30276 kB
Inactive:       395492 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        587140 kB
SwapTotal:     2097136 kB
SwapFree:      2094824 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5264 kB
Slab:            15792 kB
Committed_AS:    92716 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-09 13:04:38 (client local time) WITH STATUS 30 IN 42.4355 SECONDS
stats: 29519 0 42.4355 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 103 variables and 71 constraints.
c After prepocess the problem consists of 93 variables and 81 constraints.
c preprocess terminated 0.148 s
c Initial Lower Bound: 1055744
c Lower Bound Elapsed time: 0.0235
c Use computed LB before first solution.
c NEW SOLUTION FOUND: 1133056 @ 2.89
c NEW SOLUTION FOUND: 1128256 @ 2.966
c NEW SOLUTION FOUND: 1127744 @ 3.002
c NEW SOLUTION FOUND: 1126784 @ 3.003
c NEW SOLUTION FOUND: 1121984 @ 4.323
c NEW SOLUTION FOUND: 1120576 @ 12.008
s OPTIMUM FOUND
v -COL083_bit_7 -COL083_bit_6 -COL083_bit_5 -COL083_bit_4 -COL083_bit_3 -COL083_bit_2 COL083_bit_1 -COL083_bit0 COL083_bit1 -COL083_bit2 -COL083_bit3 COL083_bit4 COL083_bit5 -COL083_bit6 -COL083_bit7 -COL083_bit8 COL083_bit9 -COL083_bit10 -COL083_bit11 -COL083_bit12 COL083_bit13 -COL003_bit0 COL004_bit0 -COL005_bit0 -COL006_bit0 -COL007_bit0 -COL008_bit0 -COL009_bit0 -COL010_bit0 -COL011_bit0 -COL012_bit0 -COL013_bit0 -COL014_bit0 -COL017_bit0 -COL018_bit0 -COL019_bit0 -COL020_bit0 -COL021_bit0 COL022_bit0 -COL023_bit0 -COL024_bit0 -COL025_bit0 -COL026_bit0 -COL027_bit0 -COL028_bit0 -COL031_bit0 -COL032_bit0 -COL033_bit0 -COL034_bit0 COL035_bit0 -COL036_bit0 -COL037_bit0 -COL038_bit0 -COL039_bit0 -COL040_bit0 COL041_bit0 -COL042_bit0 -COL045_bit0 -COL046_bit0 -COL047_bit0 -COL048_bit0 -COL049_bit0 COL050_bit0 -COL051_bit0 -COL052_bit0 -COL053_bit0 -COL054_bit0 -COL055_bit0 -COL056_bit0 -COL059_bit0 -COL060_bit0 -COL061_bit0 -COL062_bit0 -COL063_bit0 -COL064_bit0 -COL065_bit0 -COL066_bit0 COL067_bit0 -COL068_bit0 -COL069_bit0 -COL070_bit0 COL073_bit0 COL074_bit0 COL075_bit0 -COL076_bit0 COL077_bit0 -COL078_bit0 -COL079_bit0 COL080_bit0 -COL081_bit0 COL082_bit0 -COL001_bit0 -COL002_bit0 -COL015_bit0 -COL016_bit0 -COL029_bit0 -COL030_bit0 -COL043_bit0 -COL044_bit0 -COL057_bit0 -COL058_bit0 -COL071_bit0 -COL072_bit0 
c Exit Code: 30
c Total time: 42.423 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): 0.92 0.97 0.91 1/55 5935
Raw data (stat): 5935 (runsolver) R 5934 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 853632492 884736 94 4294967295 134512640 135332820 3221224448 3221219628 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+10.0015 s]
Raw data (loadavg): 0.93 0.97 0.91 2/55 5935
Raw data (stat): 5935 (bsolo_lpr_cuts-) R 5934 8378 8377 0 -1 0 7245 0 0 0 972 25 0 0 25 0 1 0 853632492 10252288 1820 4294967295 134512640 134716908 3221224560 3221223184 134535433 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 2503 1820 1111 63 0 2440 0
vsize: 10012
[startup+20.002 s]
Raw data (loadavg): 0.94 0.97 0.91 2/55 5935
Raw data (stat): 5935 (bsolo_lpr_cuts-) R 5934 8378 8377 0 -1 0 13719 0 0 0 1949 48 0 0 25 0 1 0 853632492 11812864 2197 4294967295 134512640 134716908 3221224560 3221223200 134651142 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 2884 2197 1111 63 0 2821 0
vsize: 11536
[startup+30.0017 s]
Raw data (loadavg): 0.95 0.97 0.91 2/55 5935
Raw data (stat): 5935 (bsolo_lpr_cuts-) R 5934 8378 8377 0 -1 0 20162 0 0 0 2928 69 0 0 25 0 1 0 853632492 13643776 2591 4294967295 134512640 134716908 3221224560 3221220688 1075112368 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3331 2591 1111 63 0 3268 0
vsize: 13324
[startup+40.0015 s]
Raw data (loadavg): 0.96 0.97 0.91 2/55 5935
Raw data (stat): 5935 (bsolo_lpr_cuts-) R 5934 8378 8377 0 -1 0 26186 0 0 0 3909 89 0 0 25 0 1 0 853632492 15073280 3001 4294967295 134512640 134716908 3221224560 3221222972 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3680 3001 1111 63 0 3617 0
vsize: 14720
[startup+42.4579 s]
Raw data (loadavg): 0.96 0.97 0.91 1/54 5935
Raw data (stat): 5935 (bsolo_lpr_cuts-) R 5934 8378 8377 0 -1 0 26186 0 0 0 3909 89 0 0 25 0 1 0 853632492 15073280 3001 4294967295 134512640 134716908 3221224560 3221222972 1077781665 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3680 3001 1111 63 0 3617 0
vsize: 0

Child status: 30
Real time (s): 42.4577
CPU time (s): 42.4355
CPU user time (s): 41.4697
CPU system time (s): 0.965853
CPU usage (%): 99.9477
Max. virtual memory (Kb): 14720
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	1120576
#### END VERIFIER DATA ####