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-misc02.opb
MD5SUM	a0ad7d9714fa2256add068ab80d287bd
Bench Category	optimization, big integers (OPTBIGINT)
Has Objective Function	YES
Satisfiable	YES
(Un)Satisfiability was proved	YES
Best value of the objective function	1075471360
Optimality of the best value was proved	NO
Number of terms in the objective function	31
Biggest coefficient in the objective function	1073741824
Number of bits for the biggest coefficient in the objective function	31
Sum of the numbers in the objective function	2147483647
Number of bits of the sum of numbers in the objective function	31
Biggest number in a constraint	1073741824
Number of bits of the biggest number in a constraint	31
Biggest sum of numbers in a constraint	3234157567
Number of bits of the biggest sum of numbers	32
Best result obtained on this benchmark	SAT
Best CPU time to get the best result obtained on this benchmark	2.77858
Number of variables	89
Total number of constraints	97
Number of constraints which are clauses	7
Number of constraints which are cardinality constraints (but not clauses)	65
Number of constraints which are nor clauses,nor cardinality constraints	25
Minimum length of a constraint	1
Maximum length of a constraint	79

Trace number 42399

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 06:46:02 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25620 boxname=wulflinc1 idbench=920 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a0ad7d9714fa2256add068ab80d287bd  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-misc02.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-misc02.opb
IDLAUNCH: 25620
/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:        704732 kB
Buffers:         33380 kB
Cached:         272788 kB
SwapCached:       1192 kB
Active:          40908 kB
Inactive:       267536 kB
HighTotal:      131008 kB
HighFree:          952 kB
LowTotal:       903652 kB
LowFree:        703780 kB
SwapTotal:     2097136 kB
SwapFree:      2094880 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            15744 kB
Committed_AS:    92708 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:48:47 (client local time) WITH STATUS 30 IN 164.42 SECONDS
stats: 25620 0 164.42 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: 1076213760
c small objective detected
c CONFLICT during preprocess 
c [startup+12.6188 s]  setting bit 30 to 0
c CONFLICT during preprocess 
c [startup+13.4425 s]  setting bit 29 to 0
c CONFLICT during preprocess 
c [startup+14.2531 s]  setting bit 28 to 0
c CONFLICT during preprocess 
c [startup+15.0641 s]  setting bit 27 to 0
c CONFLICT during preprocess 
c [startup+15.8744 s]  setting bit 26 to 0
c CONFLICT during preprocess 
c [startup+16.6884 s]  setting bit 25 to 0
c CONFLICT during preprocess 
c [startup+17.5089 s]  setting bit 24 to 0
c CONFLICT during preprocess 
c [startup+18.328 s]  setting bit 23 to 0
c CONFLICT during preprocess 
c [startup+19.1481 s]  setting bit 22 to 0
c [startup+21.8748 s]  setting bit 21 to 0
c [startup+58.6531 s]  setting bit 20 to 0
c got solution with objective value: 1075563520
c [startup+60.5982 s]  setting bit 19 to 1
c [startup+104.68 s]  setting bit 18 to 0
c got solution with objective value: 1075471360
c [startup+124.564 s]  setting bit 17 to 1
c got solution with objective value: 1075471360
c [startup+129.552 s]  setting bit 16 to 1
c [startup+136.336 s]  setting bit 15 to 0
c got solution with objective value: 1075471360
c [startup+138.738 s]  setting bit 14 to 1
c [startup+143.661 s]  setting bit 13 to 0
c got solution with objective value: 1075471360
c [startup+145.692 s]  setting bit 12 to 1
c CONFLICT during preprocess 
c [startup+146.84 s]  setting bit 11 to 0
c [startup+149.959 s]  setting bit 10 to 0
c got solution with objective value: 1075471360
c [startup+151.381 s]  setting bit 9 to 1
c got solution with objective value: 1075471360
c [startup+152.78 s]  setting bit 8 to 1
c got solution with objective value: 1075471360
c [startup+154.179 s]  setting bit 7 to 1
c got solution with objective value: 1075471360
c [startup+155.579 s]  setting bit 6 to 1
c got solution with objective value: 1075471360
c [startup+156.978 s]  setting bit 5 to 1
c got solution with objective value: 1075471360
c [startup+158.376 s]  setting bit 4 to 1
c got solution with objective value: 1075471360
c [startup+159.776 s]  setting bit 3 to 1
c got solution with objective value: 1075471360
c [startup+161.174 s]  setting bit 2 to 1
c got solution with objective value: 1075471360
c [startup+162.573 s]  setting bit 1 to 1
c got solution with objective value: 1075471360
c [startup+163.972 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 -COL059_bit1 COL059_bit10 -COL059_bit11 -COL059_bit12 -COL059_bit13 -COL059_bit14 -COL059_bit15 -COL059_bit16 -COL059_bit17 -COL059_bit18 -COL059_bit19 -COL059_bit2 COL059_bit20 COL059_bit3 COL059_bit4 -COL059_bit5 -COL059_bit6 COL059_bit7 -COL059_bit8 COL059_bit9 -COL059_bit_1 -COL059_bit_10 -COL059_bit_2 -COL059_bit_3 -COL059_bit_4 -COL059_bit_5 -COL059_bit_6 -COL059_bit_7 -COL059_bit_8 -COL059_bit_9 
#### 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 1/55 15111
Raw data (stat): 15111 (runsolver) R 15110 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 911852795 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+10.0008 s]
Raw data (loadavg): 0.93 0.95 0.90 2/55 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 27342 0 0 0 948 51 0 0 25 0 1 0 911852795 81838080 16203 4294967295 134512640 135730672 3221224576 3221220864 134607973 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 19980 16203 301 301 0 19679 0
vsize: 79920
[startup+20.0007 s]
Raw data (loadavg): 0.94 0.96 0.91 2/55 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 33727 0 0 0 1933 65 0 0 25 0 1 0 911852795 88748032 17398 4294967295 134512640 135730672 3221224576 3221223056 134748449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21667 17398 301 301 0 21366 0
vsize: 86668
[startup+30.0014 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 35694 0 0 0 2929 70 0 0 25 0 1 0 911852795 93360128 18073 4294967295 134512640 135730672 3221224576 3221222864 134747543 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22793 18073 301 301 0 22492 0
vsize: 91172
[startup+40.0012 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 35758 0 0 0 3929 70 0 0 25 0 1 0 911852795 93360128 18137 4294967295 134512640 135730672 3221224576 3221222960 134763582 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22793 18137 301 301 0 22492 0
vsize: 91172
[startup+50.001 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 35762 0 0 0 4929 70 0 0 25 0 1 0 911852795 93360128 18141 4294967295 134512640 135730672 3221224576 3221222960 134763604 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22793 18141 301 301 0 22492 0
vsize: 91172
[startup+60.0008 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 36238 0 0 0 5927 71 0 0 25 0 1 0 911852795 93491200 18168 4294967295 134512640 135730672 3221224576 3221222864 134747618 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22825 18168 301 301 0 22524 0
vsize: 91300
[startup+70.0006 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 36685 0 0 0 6926 72 0 0 25 0 1 0 911852795 93491200 18199 4294967295 134512640 135730672 3221224576 3221222688 134732476 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22825 18199 301 301 0 22524 0
vsize: 91300
[startup+80.0013 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 36775 0 0 0 7926 72 0 0 25 0 1 0 911852795 93757440 18289 4294967295 134512640 135730672 3221224576 3221222688 134732476 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22890 18289 301 301 0 22589 0
vsize: 91560
[startup+90.0011 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 36780 0 0 0 8926 72 0 0 25 0 1 0 911852795 93757440 18294 4294967295 134512640 135730672 3221224576 3221222964 134747725 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22890 18294 301 301 0 22589 0
vsize: 91560
[startup+100.001 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 36783 0 0 0 9926 72 0 0 25 0 1 0 911852795 93757440 18297 4294967295 134512640 135730672 3221224576 3221222864 134747651 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22890 18297 301 301 0 22589 0
vsize: 91560
[startup+110.002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 37381 0 0 0 10926 73 0 0 25 0 1 0 911852795 94281728 18350 4294967295 134512640 135730672 3221224576 3221222864 134747751 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 23018 18350 301 301 0 22717 0
vsize: 92072
[startup+120.002 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 37385 0 0 0 11926 73 0 0 25 0 1 0 911852795 94281728 18354 4294967295 134512640 135730672 3221224576 3221222688 134732518 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 23018 18354 301 301 0 22717 0
vsize: 92072
[startup+130.002 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 38297 0 0 0 12924 75 0 0 25 0 1 0 911852795 96247808 18785 4294967295 134512640 135730672 3221224576 3221222800 134774598 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 23498 18785 301 301 0 23197 0
vsize: 93992
[startup+140.002 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 39227 0 0 0 13921 78 0 0 25 0 1 0 911852795 94810112 18467 4294967295 134512640 135730672 3221224576 3221222864 134747543 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 23147 18467 301 301 0 22846 0
vsize: 92588
[startup+150.002 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 40492 0 0 0 14918 81 0 0 25 0 1 0 911852795 94810112 18484 4294967295 134512640 135730672 3221224576 3221223040 134742366 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 23147 18484 301 301 0 22846 0
vsize: 92588
[startup+160.002 s]
Raw data (loadavg): 0.99 0.97 0.91 2/55 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 43820 0 0 0 15911 88 0 0 25 0 1 0 911852795 96514048 18900 4294967295 134512640 135730672 3221224576 3221222680 134765477 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 23563 18900 301 301 0 23262 0
vsize: 94252
[startup+164.418 s]
Raw data (loadavg): 0.99 0.97 0.91 1/54 15111
Raw data (stat): 15111 (pb2sat-v2) R 15110 8378 8377 0 -1 0 43820 0 0 0 15911 88 0 0 25 0 1 0 911852795 96514048 18900 4294967295 134512640 135730672 3221224576 3221222680 134765477 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 23563 18900 301 301 0 23262 0
vsize: 0

Child status: 30
Real time (s): 164.418
CPU time (s): 164.42
CPU user time (s): 163.48
CPU system time (s): 0.939857
CPU usage (%): 100.001
Max. virtual memory (Kb): 94252
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	1075471360
#### END VERIFIER DATA ####