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-v2-13-7/MIPLIB/miplib/normalized-mps-v2-13-7-misc02.opb
MD5SUM5128a094f3f47af1a66bc4eb5109f150
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1264768
Optimality of the best value was proved YES
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 4762239
Number of bits of the biggest sum of numbers23
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark0.090985
Number of variables79
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 constraint69

Trace number 10360

Launcher Data

LAUNCH ON wulflinc9 THE 2005-09-23 17:54:02 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9106 boxname=wulflinc9 idbench=902 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  5128a094f3f47af1a66bc4eb5109f150  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-misc02.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-misc02.opb
IDLAUNCH: 9106
/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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        906496 kB
Buffers:         13268 kB
Cached:          97776 kB
SwapCached:          0 kB
Active:          51868 kB
Inactive:        62008 kB
HighTotal:      131008 kB
HighFree:        30212 kB
LowTotal:       903652 kB
LowFree:        876284 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8732 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:56:35 (client local time) WITH STATUS 30 IN 152.53 SECONDS
stats: 9106 0 152.53 30

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 1357568
c small objective detected
c CONFLICT during preprocess 
c [startup+11.563 s]  setting bit 20 to 0
c CONFLICT during preprocess 
c [startup+12.3356 s]  setting bit 19 to 0
c [startup+14.3094 s]  setting bit 18 to 0
c [startup+47.144 s]  setting bit 17 to 0
c got solution with objective value: 1286528
c [startup+49.8862 s]  setting bit 16 to 1
c [startup+89.7042 s]  setting bit 15 to 0
c got solution with objective value: 1264768
c [startup+112.032 s]  setting bit 14 to 1
c got solution with objective value: 1264768
c [startup+115.521 s]  setting bit 13 to 1
c [startup+127.043 s]  setting bit 12 to 0
c got solution with objective value: 1264768
c [startup+128.41 s]  setting bit 11 to 1
c [startup+135.006 s]  setting bit 10 to 0
c got solution with objective value: 1264768
c [startup+136.378 s]  setting bit 9 to 1
c CONFLICT during preprocess 
c [startup+137.526 s]  setting bit 8 to 0
c [startup+143.028 s]  setting bit 7 to 0
c got solution with objective value: 1264768
c [startup+144.387 s]  setting bit 6 to 1
c got solution with objective value: 1264768
c [startup+145.703 s]  setting bit 5 to 1
c got solution with objective value: 1264768
c [startup+147.018 s]  setting bit 4 to 1
c got solution with objective value: 1264768
c [startup+148.335 s]  setting bit 3 to 1
c got solution with objective value: 1264768
c [startup+149.652 s]  setting bit 2 to 1
c got solution with objective value: 1264768
c [startup+150.969 s]  setting bit 1 to 1
c got solution with objective value: 1264768
c [startup+152.286 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_bit2 COL059_bit3 COL059_bit4 -COL059_bit5 -COL059_bit6 COL059_bit7 -COL059_bit8 COL059_bit9 -COL059_bit_1 -COL059_bit_2 -COL059_bit_3 -COL059_bit_4 -COL059_bit_5 -COL059_bit_6 -COL059_bit_7

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/11370/stat): 11370 (pb2sat) R 11369 11370 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22145777 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/11370/statm): 373 2 364 364 0 9 0
[pid=11370] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-13-7-misc02.opb

[startup+10.002 s]
Raw data (loadavg): 0.91 0.92 0.90 2/55 11370
Raw data (/proc/11370/stat): 11370 (pb2sat) R 11369 11370 4060 0 -1 0 28983 0 0 0 935 61 0 0 25 0 1 0 22145777 89489408 17466 4294967295 134512640 135987407 3221224560 3221223344 134812398 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11370/statm): 21848 17466 364 364 0 21484 0
[pid=11370] vsize: 87392
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 87392

[startup+20.0028 s]
Raw data (loadavg): 0.92 0.92 0.91 2/55 11370
Raw data (/proc/11370/stat): 11370 (pb2sat) R 11369 11370 4060 0 -1 0 32773 0 0 0 1926 69 0 0 25 0 1 0 22145777 97263616 18580 4294967295 134512640 135987407 3221224560 3221223104 134812053 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11370/statm): 23746 18580 364 364 0 23382 0
[pid=11370] vsize: 94984
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 94984

[startup+30.0036 s]
Raw data (loadavg): 0.93 0.92 0.91 2/55 11370
Raw data (/proc/11370/stat): 11370 (pb2sat) R 11369 11370 4060 0 -1 0 32893 0 0 0 2925 69 0 0 25 0 1 0 22145777 97525760 18635 4294967295 134512640 135987407 3221224560 3221223104 134811729 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11370/statm): 23810 18635 364 364 0 23446 0
[pid=11370] vsize: 95240
Current children cumulated CPU time (s) 29.94
Current children cumulated vsize (Kb) 95240

[startup+40.0043 s]
Raw data (loadavg): 0.94 0.93 0.91 2/55 11370
Raw data (/proc/11370/stat): 11370 (pb2sat) R 11369 11370 4060 0 -1 0 32914 0 0 0 3924 70 0 0 25 0 1 0 22145777 97525760 18656 4294967295 134512640 135987407 3221224560 3221223104 134811770 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11370/statm): 23810 18656 364 364 0 23446 0
[pid=11370] vsize: 95240
Current children cumulated CPU time (s) 39.94
Current children cumulated vsize (Kb) 95240

[startup+50.0051 s]
Raw data (loadavg): 0.95 0.93 0.91 2/55 11370
Raw data (/proc/11370/stat): 11370 (pb2sat) R 11369 11370 4060 0 -1 0 33720 0 0 0 4922 72 0 0 25 0 1 0 22145777 99131392 19070 4294967295 134512640 135987407 3221224560 3221222952 134827499 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11370/statm): 24202 19070 364 364 0 23838 0
[pid=11370] vsize: 96808
Current children cumulated CPU time (s) 49.94
Current children cumulated vsize (Kb) 96808

[startup+60.0049 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 11370
Raw data (/proc/11370/stat): 11370 (pb2sat) R 11369 11370 4060 0 -1 0 33771 0 0 0 5921 73 0 0 25 0 1 0 22145777 97525760 18729 4294967295 134512640 135987407 3221224560 3221223104 134811839 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11370/statm): 23810 18729 364 364 0 23446 0
[pid=11370] vsize: 95240
Current children cumulated CPU time (s) 59.94
Current children cumulated vsize (Kb) 95240

[startup+70.0057 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 11370
Raw data (/proc/11370/stat): 11370 (pb2sat) R 11369 11370 4060 0 -1 0 33921 0 0 0 6920 73 0 0 25 0 1 0 22145777 98050048 18750 4294967295 134512640 135987407 3221224560 3221223232 134824259 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11370/statm): 23938 18750 364 364 0 23574 0
[pid=11370] vsize: 95752
Current children cumulated CPU time (s) 69.93
Current children cumulated vsize (Kb) 95752

[startup+80.0064 s]
Raw data (loadavg): 0.97 0.93 0.91 2/55 11370
Raw data (/proc/11370/stat): 11370 (pb2sat) R 11369 11370 4060 0 -1 0 34089 0 0 0 7919 74 0 0 25 0 1 0 22145777 98766848 18789 4294967295 134512640 135987407 3221224560 3221223232 134824259 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/11370/statm): 24113 18789 364 364 0 23749 0
[pid=11370] vsize: 96452
Current children cumulated CPU time (s) 79.93
Current children cumulated vsize (Kb) 96452

[startup+90.0072 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 11370
Raw data (/proc/11370/stat): 11370 (pb2sat) R 11369 11370 4060 0 -1 0 34484 0 0 0 8918 75 0 0 25 0 1 0 22145777 100372480 19184 4294967295 134512640 135987407 3221224560 3221222976 134829261 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11370/statm): 24505 19184 364 364 0 24141 0
[pid=11370] vsize: 98020
Current children cumulated CPU time (s) 89.93
Current children cumulated vsize (Kb) 98020

[startup+100.008 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 11370
Raw data (/proc/11370/stat): 11370 (pb2sat) R 11369 11370 4060 0 -1 0 34506 0 0 0 9917 75 0 0 25 0 1 0 22145777 98766848 18814 4294967295 134512640 135987407 3221224560 3221223104 134811775 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11370/statm): 24113 18814 364 364 0 23749 0
[pid=11370] vsize: 96452
Current children cumulated CPU time (s) 99.92
Current children cumulated vsize (Kb) 96452

[startup+110.008 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 11370
Raw data (/proc/11370/stat): 11370 (pb2sat) R 11369 11370 4060 0 -1 0 34511 0 0 0 10916 75 0 0 25 0 1 0 22145777 98766848 18819 4294967295 134512640 135987407 3221224560 3221223232 134824259 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11370/statm): 24113 18819 364 364 0 23749 0
[pid=11370] vsize: 96452
Current children cumulated CPU time (s) 109.91
Current children cumulated vsize (Kb) 96452

[startup+120.009 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 11370
Raw data (/proc/11370/stat): 11370 (pb2sat) R 11369 11370 4060 0 -1 0 35423 0 0 0 11913 78 0 0 25 0 1 0 22145777 99033088 18947 4294967295 134512640 135987407 3221224560 3221223104 134812053 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11370/statm): 24178 18947 364 364 0 23814 0
[pid=11370] vsize: 96712
Current children cumulated CPU time (s) 119.91
Current children cumulated vsize (Kb) 96712

[startup+130.008 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 11370
Raw data (/proc/11370/stat): 11370 (pb2sat) R 11369 11370 4060 0 -1 0 36211 0 0 0 12910 80 0 0 25 0 1 0 22145777 99033088 18951 4294967295 134512640 135987407 3221224560 3221223244 134677714 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11370/statm): 24178 18951 364 364 0 23814 0
[pid=11370] vsize: 96712
Current children cumulated CPU time (s) 129.9
Current children cumulated vsize (Kb) 96712

[startup+140.009 s]
Raw data (loadavg): 0.99 0.94 0.91 2/55 11370
Raw data (/proc/11370/stat): 11370 (pb2sat) R 11369 11370 4060 0 -1 0 37393 0 0 0 13907 83 0 0 25 0 1 0 22145777 99033088 18957 4294967295 134512640 135987407 3221224560 3221222976 134788496 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11370/statm): 24178 18957 364 364 0 23814 0
[pid=11370] vsize: 96712
Current children cumulated CPU time (s) 139.9
Current children cumulated vsize (Kb) 96712

[startup+150.01 s]
Raw data (loadavg): 0.99 0.94 0.91 2/55 11370
Raw data (/proc/11370/stat): 11370 (pb2sat) R 11369 11370 4060 0 -1 0 39748 0 0 0 14901 88 0 0 25 0 1 0 22145777 100638720 19352 4294967295 134512640 135987407 3221224560 3221222976 134829255 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/11370/statm): 24570 19352 364 364 0 24206 0
[pid=11370] vsize: 98280
Current children cumulated CPU time (s) 149.89
Current children cumulated vsize (Kb) 98280
One traced child (pid=11370) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 152.641
CPU time (s): 152.53
CPU user time (s): 151.597
CPU system time (s): 0.932858
CPU usage (%): 99.9269
Max. virtual memory (cumulated for all children) (Kb): 98280

Verifier Data

Verifier:	OK	1264768