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:
  1. 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.
  2. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser !
  3. 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.
  4. 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

Namemps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-misc02.opb
MD5SUMa0ad7d9714fa2256add068ab80d287bd
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1075471360
Optimality of the best value was proved YES
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 numbers32
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark2.76758
Number of variables89
Total number of constraints97
Number of constraints which are clauses7
Number of constraints which are cardinality constraints (but not clauses)65
Number of constraints which are nor clauses,nor cardinality constraints25
Minimum length of a constraint1
Maximum length of a constraint79

Trace number 9974

Launcher Data

LAUNCH ON wulflinc25 THE 2005-09-23 16:18:35 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8722 boxname=wulflinc25 idbench=518 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a0ad7d9714fa2256add068ab80d287bd  /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-misc02.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-misc02.opb
IDLAUNCH: 8722
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.002
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		: 451.002
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        927284 kB
Buffers:         17244 kB
Cached:          71020 kB
SwapCached:          0 kB
Active:          44692 kB
Inactive:        46456 kB
HighTotal:      131008 kB
HighFree:        56112 kB
LowTotal:       903652 kB
LowFree:        871172 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:            10680 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:21:24 (client local time) WITH STATUS 30 IN 168.1 SECONDS
stats: 8722 0 168.1 30

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+12.2778 s]  setting bit 30 to 0
c CONFLICT during preprocess 
c [startup+13.1029 s]  setting bit 29 to 0
c CONFLICT during preprocess 
c [startup+13.9275 s]  setting bit 28 to 0
c CONFLICT during preprocess 
c [startup+14.7517 s]  setting bit 27 to 0
c CONFLICT during preprocess 
c [startup+15.5765 s]  setting bit 26 to 0
c CONFLICT during preprocess 
c [startup+16.4015 s]  setting bit 25 to 0
c CONFLICT during preprocess 
c [startup+17.2262 s]  setting bit 24 to 0
c CONFLICT during preprocess 
c [startup+18.0507 s]  setting bit 23 to 0
c CONFLICT during preprocess 
c [startup+18.8748 s]  setting bit 22 to 0
c [startup+21.6213 s]  setting bit 21 to 0
c [startup+59.5122 s]  setting bit 20 to 0
c got solution with objective value: 1075563520
c [startup+61.4695 s]  setting bit 19 to 1
c [startup+107.011 s]  setting bit 18 to 0
c got solution with objective value: 1075471360
c [startup+127.568 s]  setting bit 17 to 1
c got solution with objective value: 1075471360
c [startup+132.686 s]  setting bit 16 to 1
c [startup+139.671 s]  setting bit 15 to 0
c got solution with objective value: 1075471360
c [startup+142.126 s]  setting bit 14 to 1
c [startup+147.187 s]  setting bit 13 to 0
c got solution with objective value: 1075471360
c [startup+149.26 s]  setting bit 12 to 1
c CONFLICT during preprocess 
c [startup+150.426 s]  setting bit 11 to 0
c [startup+153.628 s]  setting bit 10 to 0
c got solution with objective value: 1075471360
c [startup+155.067 s]  setting bit 9 to 1
c got solution with objective value: 1075471360
c [startup+156.482 s]  setting bit 8 to 1
c got solution with objective value: 1075471360
c [startup+157.897 s]  setting bit 7 to 1
c got solution with objective value: 1075471360
c [startup+159.313 s]  setting bit 6 to 1
c got solution with objective value: 1075471360
c [startup+160.729 s]  setting bit 5 to 1
c got solution with objective value: 1075471360
c [startup+162.145 s]  setting bit 4 to 1
c got solution with objective value: 1075471360
c [startup+163.561 s]  setting bit 3 to 1
c got solution with objective value: 1075471360
c [startup+164.977 s]  setting bit 2 to 1
c got solution with objective value: 1075471360
c [startup+166.392 s]  setting bit 1 to 1
c got solution with objective value: 1075471360
c [startup+167.808 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

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21534655 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 373 2 364 364 0 9 0
[pid=8021] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc25/normalized-mps-v2-20-10-misc02.opb

[startup+10.0015 s]
Raw data (loadavg): 0.92 0.95 0.94 2/55 8021
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 28957 0 0 0 933 63 0 0 25 0 1 0 21534655 88416256 17820 4294967295 134512640 135987407 3221224560 3221223456 134800229 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 21586 17820 364 364 0 21222 0
[pid=8021] vsize: 86344
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 86344

[startup+20.0021 s]
Raw data (loadavg): 0.93 0.95 0.94 2/55 8021
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 35341 0 0 0 1917 79 0 0 25 0 1 0 21534655 95625216 18983 4294967295 134512640 135987407 3221224560 3221223104 134812010 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 23346 18983 364 364 0 22982 0
[pid=8021] vsize: 93384
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 93384

[startup+30.0037 s]
Raw data (loadavg): 0.94 0.95 0.94 2/55 8021
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 37177 0 0 0 2911 83 0 0 25 0 1 0 21534655 99741696 19642 4294967295 134512640 135987407 3221224560 3221223104 134811770 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 24351 19642 364 364 0 23987 0
[pid=8021] vsize: 97404
Current children cumulated CPU time (s) 29.94
Current children cumulated vsize (Kb) 97404

[startup+40.0033 s]
Raw data (loadavg): 0.95 0.95 0.94 2/55 8021
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 37241 0 0 0 3911 84 0 0 25 0 1 0 21534655 99741696 19706 4294967295 134512640 135987407 3221224560 3221223280 134812647 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 24351 19706 364 364 0 23987 0
[pid=8021] vsize: 97404
Current children cumulated CPU time (s) 39.95
Current children cumulated vsize (Kb) 97404

[startup+50.0039 s]
Raw data (loadavg): 0.96 0.95 0.94 2/55 8021
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 37243 0 0 0 4910 84 0 0 25 0 1 0 21534655 99741696 19708 4294967295 134512640 135987407 3221224560 3221223232 134824259 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 24351 19708 364 364 0 23987 0
[pid=8021] vsize: 97404
Current children cumulated CPU time (s) 49.94
Current children cumulated vsize (Kb) 97404

[startup+60.0046 s]
Raw data (loadavg): 0.96 0.95 0.94 2/55 8021
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 37662 0 0 0 5908 85 0 0 25 0 1 0 21534655 99741696 19711 4294967295 134512640 135987407 3221224560 3221223232 134789619 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 24351 19711 364 364 0 23987 0
[pid=8021] vsize: 97404
Current children cumulated CPU time (s) 59.93
Current children cumulated vsize (Kb) 97404

[startup+70.0052 s]
Raw data (loadavg): 0.97 0.95 0.94 2/55 8021
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 38164 0 0 0 6907 87 0 0 25 0 1 0 21534655 99872768 19764 4294967295 134512640 135987407 3221224560 3221223104 134811839 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 24383 19764 364 364 0 24019 0
[pid=8021] vsize: 97532
Current children cumulated CPU time (s) 69.94
Current children cumulated vsize (Kb) 97532

[startup+80.0058 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 8021
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 38255 0 0 0 7905 87 0 0 25 0 1 0 21534655 100139008 19822 4294967295 134512640 135987407 3221224560 3221222976 134788496 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 24448 19822 364 364 0 24084 0
[pid=8021] vsize: 97792
Current children cumulated CPU time (s) 79.92
Current children cumulated vsize (Kb) 97792

[startup+90.0064 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8021
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 38260 0 0 0 8905 87 0 0 25 0 1 0 21534655 100139008 19827 4294967295 134512640 135987407 3221224560 3221223104 134811729 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 24448 19827 364 364 0 24084 0
[pid=8021] vsize: 97792
Current children cumulated CPU time (s) 89.92
Current children cumulated vsize (Kb) 97792

[startup+100.006 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8021
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 38262 0 0 0 9904 88 0 0 25 0 1 0 21534655 100139008 19829 4294967295 134512640 135987407 3221224560 3221223104 134812005 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 24448 19829 364 364 0 24084 0
[pid=8021] vsize: 97792
Current children cumulated CPU time (s) 99.92
Current children cumulated vsize (Kb) 97792

[startup+110.007 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8021
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 38681 0 0 0 10903 89 0 0 25 0 1 0 21534655 100139008 19832 4294967295 134512640 135987407 3221224560 3221223232 134824259 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 24448 19832 364 364 0 24084 0
[pid=8021] vsize: 97792
Current children cumulated CPU time (s) 109.92
Current children cumulated vsize (Kb) 97792

[startup+120.007 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8021
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 38864 0 0 0 11903 89 0 0 25 0 1 0 21534655 100663296 19886 4294967295 134512640 135987407 3221224560 3221223104 134811729 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 24576 19886 364 364 0 24212 0
[pid=8021] vsize: 98304
Current children cumulated CPU time (s) 119.92
Current children cumulated vsize (Kb) 98304

[startup+130.008 s]
Raw data (loadavg): 0.99 0.96 0.94 2/55 8021
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 39284 0 0 0 12901 91 0 0 25 0 1 0 21534655 100663296 19890 4294967295 134512640 135987407 3221224560 3221222976 134788454 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 24576 19890 364 364 0 24212 0
[pid=8021] vsize: 98304
Current children cumulated CPU time (s) 129.92
Current children cumulated vsize (Kb) 98304

[startup+140.008 s]
Raw data (loadavg): 0.99 0.96 0.94 2/55 8021
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 40196 0 0 0 13899 93 0 0 25 0 1 0 21534655 102629376 20321 4294967295 134512640 135987407 3221224560 3221222952 134827493 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 25056 20321 364 364 0 24692 0
[pid=8021] vsize: 100224
Current children cumulated CPU time (s) 139.92
Current children cumulated vsize (Kb) 100224

[startup+150.009 s]
Raw data (loadavg): 0.99 0.96 0.94 2/55 8021
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 41587 0 0 0 14896 96 0 0 25 0 1 0 21534655 101191680 20015 4294967295 134512640 135987407 3221224560 3221223008 134811839 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 24705 20015 364 364 0 24341 0
[pid=8021] vsize: 98820
Current children cumulated CPU time (s) 149.92
Current children cumulated vsize (Kb) 98820

[startup+160.01 s]
Raw data (loadavg): 0.99 0.96 0.94 2/55 8021
Raw data (/proc/8021/stat): 8021 (pb2sat) R 8020 8021 4004 0 -1 0 44085 0 0 0 15890 102 0 0 25 0 1 0 21534655 101191680 20017 4294967295 134512640 135987407 3221224560 3221223008 134812053 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8021/statm): 24705 20017 364 364 0 24341 0
[pid=8021] vsize: 98820
Current children cumulated CPU time (s) 159.92
Current children cumulated vsize (Kb) 98820
One traced child (pid=8021) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 168.187
CPU time (s): 168.1
CPU user time (s): 166.993
CPU system time (s): 1.10783
CPU usage (%): 99.9484
Max. virtual memory (cumulated for all children) (Kb): 100224

Verifier Data

Verifier:	OK	1075471360