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 42782

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 14:54:37 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26003 boxname=wulflinc3 idbench=1303 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  c625a850881ad6f6b45ac56ea24bd563  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-misc01.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-misc01.opb
IDLAUNCH: 26003
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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	: 2
cpu MHz		: 451.190
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:        725336 kB
Buffers:         17280 kB
Cached:         270524 kB
SwapCached:        788 kB
Active:          30868 kB
Inactive:       259044 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        725084 kB
SwapTotal:     2097136 kB
SwapFree:      2095372 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            13836 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:57:08 (client local time) WITH STATUS 30 IN 150.209 SECONDS
stats: 26003 0 150.209 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 1139584
c small objective detected
c CONFLICT during preprocess 
c [startup+6.07141 s]  setting bit 20 to 0
c CONFLICT during preprocess 
c [startup+6.46188 s]  setting bit 19 to 0
c CONFLICT during preprocess 
c [startup+6.85165 s]  setting bit 18 to 0
c CONFLICT during preprocess 
c [startup+7.24279 s]  setting bit 17 to 0
c [startup+15.1246 s]  setting bit 16 to 0
c [startup+47.3425 s]  setting bit 15 to 0
c got solution with objective value: 1121984
c [startup+59.3057 s]  setting bit 14 to 1
c [startup+92.526 s]  setting bit 13 to 0
c [startup+118.993 s]  setting bit 12 to 0
c got solution with objective value: 1120576
c [startup+127.751 s]  setting bit 11 to 1
c [startup+137.172 s]  setting bit 10 to 0
c got solution with objective value: 1120576
c [startup+137.881 s]  setting bit 9 to 1
c [startup+144.226 s]  setting bit 8 to 0
c [startup+145.057 s]  setting bit 7 to 0
c [startup+145.882 s]  setting bit 6 to 0
c got solution with objective value: 1120576
c [startup+146.588 s]  setting bit 5 to 1
c got solution with objective value: 1120576
c [startup+147.26 s]  setting bit 4 to 1
c got solution with objective value: 1120576
c [startup+147.931 s]  setting bit 3 to 1
c got solution with objective value: 1120576
c [startup+148.602 s]  setting bit 2 to 1
c got solution with objective value: 1120576
c [startup+149.271 s]  setting bit 1 to 1
c got solution with objective value: 1120576
c [startup+149.945 s]  setting bit 0 to 1
s OPTIMUM FOUND
v -COL001_bit0 -COL002_bit0 -COL003_bit0 -COL004_bit0 -COL005_bit0 -COL006_bit0 -COL007_bit0 -COL008_bit0 COL009_bit0 -COL010_bit0 -COL011_bit0 -COL012_bit0 COL013_bit0 -COL014_bit0 -COL015_bit0 -COL016_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 -COL029_bit0 -COL030_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 -COL043_bit0 -COL044_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 -COL057_bit0 -COL058_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 -COL071_bit0 -COL072_bit0 COL073_bit0 COL074_bit0 COL075_bit0 -COL076_bit0 COL077_bit0 -COL078_bit0 -COL079_bit0 COL080_bit0 -COL081_bit0 COL082_bit0 -COL083_bit0 COL083_bit1 -COL083_bit10 -COL083_bit11 -COL083_bit12 COL083_bit13 -COL083_bit2 -COL083_bit3 COL083_bit4 COL083_bit5 -COL083_bit6 -COL083_bit7 -COL083_bit8 COL083_bit9 COL083_bit_1 -COL083_bit_2 -COL083_bit_3 -COL083_bit_4 -COL083_bit_5 -COL083_bit_6 -COL083_bit_7 
#### 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 2/54 25513
Raw data (stat): 25513 (runsolver) R 25512 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971632682 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0003 s]
Raw data (loadavg): 0.93 0.95 0.90 2/54 25513
Raw data (stat): 25513 (pb2sat-v2) R 25512 20224 20223 0 -1 0 16254 0 0 0 962 36 0 0 25 0 1 0 971632682 46780416 9102 4294967295 134512640 135730672 3221224576 3221222864 134747541 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 11421 9102 301 301 0 11120 0
vsize: 45684
[startup+20.0006 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 25513
Raw data (stat): 25513 (pb2sat-v2) R 25512 20224 20223 0 -1 0 16700 0 0 0 1961 37 0 0 25 0 1 0 971632682 47374336 9227 4294967295 134512640 135730672 3221224576 3221222864 134747541 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 11566 9227 301 301 0 11265 0
vsize: 46264
[startup+30.0014 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 25513
Raw data (stat): 25513 (pb2sat-v2) R 25512 20224 20223 0 -1 0 16770 0 0 0 2959 38 0 0 25 0 1 0 971632682 47505408 9264 4294967295 134512640 135730672 3221224576 3221222964 134747444 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 11598 9264 301 301 0 11297 0
vsize: 46392
[startup+40.0018 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 25513
Raw data (stat): 25513 (pb2sat-v2) R 25512 20224 20223 0 -1 0 16785 0 0 0 3958 38 0 0 25 0 1 0 971632682 47505408 9279 4294967295 134512640 135730672 3221224576 3221222864 134747541 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 11598 9279 301 301 0 11297 0
vsize: 46392
[startup+50.0021 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 25513
Raw data (stat): 25513 (pb2sat-v2) R 25512 20224 20223 0 -1 0 17091 0 0 0 4957 40 0 0 25 0 1 0 971632682 47767552 9313 4294967295 134512640 135730672 3221224576 3221222960 134763604 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 11662 9313 301 301 0 11361 0
vsize: 46648
[startup+60.003 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 25513
Raw data (stat): 25513 (pb2sat-v2) R 25512 20224 20223 0 -1 0 17401 0 0 0 5956 41 0 0 25 0 1 0 971632682 48029696 9351 4294967295 134512640 135730672 3221224576 3221222688 134732476 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 11726 9351 301 301 0 11425 0
vsize: 46904
[startup+70.0034 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 25513
Raw data (stat): 25513 (pb2sat-v2) R 25512 20224 20223 0 -1 0 17418 0 0 0 6956 42 0 0 25 0 1 0 971632682 48029696 9368 4294967295 134512640 135730672 3221224576 3221222864 134747575 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 11726 9368 301 301 0 11425 0
vsize: 46904
[startup+80.0046 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 25513
Raw data (stat): 25513 (pb2sat-v2) R 25512 20224 20223 0 -1 0 17425 0 0 0 7955 42 0 0 25 0 1 0 971632682 48029696 9375 4294967295 134512640 135730672 3221224576 3221223056 134748449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 11726 9375 301 301 0 11425 0
vsize: 46904
[startup+90.0055 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 25513
Raw data (stat): 25513 (pb2sat-v2) R 25512 20224 20223 0 -1 0 17439 0 0 0 8955 42 0 0 25 0 1 0 971632682 48029696 9389 4294967295 134512640 135730672 3221224576 3221222992 134748166 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 11726 9389 301 301 0 11425 0
vsize: 46904
[startup+100.005 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 25513
Raw data (stat): 25513 (pb2sat-v2) R 25512 20224 20223 0 -1 0 17788 0 0 0 9954 43 0 0 25 0 1 0 971632682 48619520 9531 4294967295 134512640 135730672 3221224576 3221223024 134734829 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 11870 9531 301 301 0 11569 0
vsize: 47480
[startup+110.006 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 25513
Raw data (stat): 25513 (pb2sat-v2) R 25512 20224 20223 0 -1 0 17811 0 0 0 10953 44 0 0 25 0 1 0 971632682 48619520 9554 4294967295 134512640 135730672 3221224576 3221222688 134732524 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 11870 9554 301 301 0 11569 0
vsize: 47480
[startup+120.007 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 25513
Raw data (stat): 25513 (pb2sat-v2) R 25512 20224 20223 0 -1 0 18031 0 0 0 11952 45 0 0 25 0 1 0 971632682 48619520 9567 4294967295 134512640 135730672 3221224576 3221222864 134747549 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 11870 9567 301 301 0 11569 0
vsize: 47480
[startup+130.007 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 25513
Raw data (stat): 25513 (pb2sat-v2) R 25512 20224 20223 0 -1 0 18330 0 0 0 12951 47 0 0 25 0 1 0 971632682 48881664 9594 4294967295 134512640 135730672 3221224576 3221222864 134747543 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 11934 9594 301 301 0 11633 0
vsize: 47736
[startup+140.008 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 25513
Raw data (stat): 25513 (pb2sat-v2) R 25512 20224 20223 0 -1 0 18769 0 0 0 13950 48 0 0 25 0 1 0 971632682 48881664 9619 4294967295 134512640 135730672 3221224576 3221222864 134747751 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 11934 9619 301 301 0 11633 0
vsize: 47736
[startup+150.009 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 25513
Raw data (stat): 25513 (pb2sat-v2) R 25512 20224 20223 0 -1 0 20439 0 0 0 14946 53 0 0 25 0 1 0 971632682 48881664 9633 4294967295 134512640 135730672 3221224576 3221222476 135281249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 11934 9633 301 301 0 11633 0
vsize: 47736
[startup+150.23 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 25513
Raw data (stat): 25513 (pb2sat-v2) R 25512 20224 20223 0 -1 0 20439 0 0 0 14946 53 0 0 25 0 1 0 971632682 48881664 9633 4294967295 134512640 135730672 3221224576 3221222476 135281249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 11934 9633 301 301 0 11633 0
vsize: 0

Child status: 30
Real time (s): 150.23
CPU time (s): 150.209
CPU user time (s): 149.659
CPU system time (s): 0.549916
CPU usage (%): 99.9862
Max. virtual memory (Kb): 47736
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	1120576
#### END VERIFIER DATA ####