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-misc01.opb
MD5SUMc625a850881ad6f6b45ac56ea24bd563
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1120576
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 3441919
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark0.383941
Number of variables103
Total number of constraints136
Number of constraints which are clauses15
Number of constraints which are cardinality constraints (but not clauses)88
Number of constraints which are nor clauses,nor cardinality constraints33
Minimum length of a constraint1
Maximum length of a constraint91

Trace number 10361

Launcher Data

LAUNCH ON wulflinc10 THE 2005-09-23 17:54:01 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9105 boxname=wulflinc10 idbench=901 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  c625a850881ad6f6b45ac56ea24bd563  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-misc01.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-misc01.opb
IDLAUNCH: 9105
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.193
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		: 451.193
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:        933372 kB
Buffers:         12236 kB
Cached:          72220 kB
SwapCached:          0 kB
Active:          44660 kB
Inactive:        42692 kB
HighTotal:      131008 kB
HighFree:        54880 kB
LowTotal:       903652 kB
LowFree:        878492 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:             8392 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:56:40 (client local time) WITH STATUS 30 IN 158.058 SECONDS
stats: 9105 0 158.058 30

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+6.10593 s]  setting bit 20 to 0
c CONFLICT during preprocess 
c [startup+6.52129 s]  setting bit 19 to 0
c CONFLICT during preprocess 
c [startup+6.93772 s]  setting bit 18 to 0
c CONFLICT during preprocess 
c [startup+7.35352 s]  setting bit 17 to 0
c [startup+15.6895 s]  setting bit 16 to 0
c [startup+49.7337 s]  setting bit 15 to 0
c got solution with objective value: 1121984
c [startup+62.412 s]  setting bit 14 to 1
c [startup+97.597 s]  setting bit 13 to 0
c [startup+125.632 s]  setting bit 12 to 0
c got solution with objective value: 1120576
c [startup+134.816 s]  setting bit 11 to 1
c [startup+144.684 s]  setting bit 10 to 0
c got solution with objective value: 1120576
c [startup+145.418 s]  setting bit 9 to 1
c [startup+152.068 s]  setting bit 8 to 0
c [startup+152.943 s]  setting bit 7 to 0
c [startup+153.811 s]  setting bit 6 to 0
c got solution with objective value: 1120576
c [startup+154.542 s]  setting bit 5 to 1
c got solution with objective value: 1120576
c [startup+155.24 s]  setting bit 4 to 1
c got solution with objective value: 1120576
c [startup+155.937 s]  setting bit 3 to 1
c got solution with objective value: 1120576
c [startup+156.634 s]  setting bit 2 to 1
c got solution with objective value: 1120576
c [startup+157.331 s]  setting bit 1 to 1
c got solution with objective value: 1120576
c [startup+158.028 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

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/9091/stat): 9091 (pb2sat) R 9090 9091 4061 0 -1 0 18 0 0 0 0 0 0 0 21 0 1 0 22145090 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9091/statm): 373 2 364 364 0 9 0
[pid=9091] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-misc01.opb

[startup+10.002 s]
Raw data (loadavg): 0.92 0.93 0.90 2/55 9091
Raw data (/proc/9091/stat): 9091 (pb2sat) R 9090 9091 4061 0 -1 0 17017 0 0 0 955 41 0 0 25 0 1 0 22145090 49938432 9845 4294967295 134512640 135987407 3221224560 3221223104 134811829 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9091/statm): 12192 9845 364 364 0 11828 0
[pid=9091] vsize: 48768
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 48768

[startup+20.0026 s]
Raw data (loadavg): 0.93 0.93 0.91 2/55 9091
Raw data (/proc/9091/stat): 9091 (pb2sat) R 9090 9091 4061 0 -1 0 17521 0 0 0 1952 44 0 0 25 0 1 0 22145090 50872320 10033 4294967295 134512640 135987407 3221224560 3221223104 134812053 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9091/statm): 12420 10033 364 364 0 12056 0
[pid=9091] vsize: 49680
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 49680

[startup+30.0032 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 9091
Raw data (/proc/9091/stat): 9091 (pb2sat) R 9090 9091 4061 0 -1 0 17581 0 0 0 2950 44 0 0 25 0 1 0 22145090 51003392 10060 4294967295 134512640 135987407 3221224560 3221223104 134811775 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9091/statm): 12452 10060 364 364 0 12088 0
[pid=9091] vsize: 49808
Current children cumulated CPU time (s) 29.94
Current children cumulated vsize (Kb) 49808

[startup+40.0037 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 9091
Raw data (/proc/9091/stat): 9091 (pb2sat) R 9090 9091 4061 0 -1 0 17604 0 0 0 3949 45 0 0 25 0 1 0 22145090 51003392 10083 4294967295 134512640 135987407 3221224560 3221223104 134812053 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9091/statm): 12452 10083 364 364 0 12088 0
[pid=9091] vsize: 49808
Current children cumulated CPU time (s) 39.94
Current children cumulated vsize (Kb) 49808

[startup+50.0043 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 9091
Raw data (/proc/9091/stat): 9091 (pb2sat) R 9090 9091 4061 0 -1 0 17898 0 0 0 4946 46 0 0 25 0 1 0 22145090 51265536 10105 4294967295 134512640 135987407 3221224560 3221223264 134818089 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9091/statm): 12516 10105 364 364 0 12152 0
[pid=9091] vsize: 50064
Current children cumulated CPU time (s) 49.92
Current children cumulated vsize (Kb) 50064

[startup+60.0038 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 9091
Raw data (/proc/9091/stat): 9091 (pb2sat) R 9090 9091 4061 0 -1 0 18012 0 0 0 5943 48 0 0 25 0 1 0 22145090 51527680 10154 4294967295 134512640 135987407 3221224560 3221223104 134811770 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9091/statm): 12580 10154 364 364 0 12216 0
[pid=9091] vsize: 50320
Current children cumulated CPU time (s) 59.91
Current children cumulated vsize (Kb) 50320

[startup+70.0044 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 9091
Raw data (/proc/9091/stat): 9091 (pb2sat) R 9090 9091 4061 0 -1 0 18234 0 0 0 6941 49 0 0 25 0 1 0 22145090 51527680 10169 4294967295 134512640 135987407 3221224560 3221223104 134811770 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9091/statm): 12580 10169 364 364 0 12216 0
[pid=9091] vsize: 50320
Current children cumulated CPU time (s) 69.9
Current children cumulated vsize (Kb) 50320

[startup+80.005 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 9091
Raw data (/proc/9091/stat): 9091 (pb2sat) R 9090 9091 4061 0 -1 0 18245 0 0 0 7940 50 0 0 25 0 1 0 22145090 51527680 10180 4294967295 134512640 135987407 3221224560 3221223104 134811729 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9091/statm): 12580 10180 364 364 0 12216 0
[pid=9091] vsize: 50320
Current children cumulated CPU time (s) 79.9
Current children cumulated vsize (Kb) 50320

[startup+90.0055 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 9091
Raw data (/proc/9091/stat): 9091 (pb2sat) R 9090 9091 4061 0 -1 0 18255 0 0 0 8939 50 0 0 25 0 1 0 22145090 51527680 10190 4294967295 134512640 135987407 3221224560 3221223104 134812053 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9091/statm): 12580 10190 364 364 0 12216 0
[pid=9091] vsize: 50320
Current children cumulated CPU time (s) 89.89
Current children cumulated vsize (Kb) 50320

[startup+100.005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 9091
Raw data (/proc/9091/stat): 9091 (pb2sat) R 9090 9091 4061 0 -1 0 18597 0 0 0 9936 52 0 0 25 0 1 0 22145090 52129792 10325 4294967295 134512640 135987407 3221224560 3221223104 134811729 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9091/statm): 12727 10325 364 364 0 12363 0
[pid=9091] vsize: 50908
Current children cumulated CPU time (s) 99.88
Current children cumulated vsize (Kb) 50908

[startup+110.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 9091
Raw data (/proc/9091/stat): 9091 (pb2sat) R 9090 9091 4061 0 -1 0 18620 0 0 0 10935 52 0 0 25 0 1 0 22145090 52129792 10348 4294967295 134512640 135987407 3221224560 3221223280 134812647 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9091/statm): 12727 10348 364 364 0 12363 0
[pid=9091] vsize: 50908
Current children cumulated CPU time (s) 109.87
Current children cumulated vsize (Kb) 50908

[startup+120.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 9091
Raw data (/proc/9091/stat): 9091 (pb2sat) R 9090 9091 4061 0 -1 0 18632 0 0 0 11934 53 0 0 25 0 1 0 22145090 52129792 10360 4294967295 134512640 135987407 3221224560 3221223104 134811775 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9091/statm): 12727 10360 364 364 0 12363 0
[pid=9091] vsize: 50908
Current children cumulated CPU time (s) 119.87
Current children cumulated vsize (Kb) 50908

[startup+130.006 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 9091
Raw data (/proc/9091/stat): 9091 (pb2sat) R 9090 9091 4061 0 -1 0 18924 0 0 0 12932 54 0 0 25 0 1 0 22145090 52391936 10380 4294967295 134512640 135987407 3221224560 3221223232 134824259 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9091/statm): 12791 10380 364 364 0 12427 0
[pid=9091] vsize: 51164
Current children cumulated CPU time (s) 129.86
Current children cumulated vsize (Kb) 51164

[startup+140.006 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 9091
Raw data (/proc/9091/stat): 9091 (pb2sat) R 9090 9091 4061 0 -1 0 19154 0 0 0 13930 55 0 0 25 0 1 0 22145090 52391936 10403 4294967295 134512640 135987407 3221224560 3221223232 134824259 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9091/statm): 12791 10403 364 364 0 12427 0
[pid=9091] vsize: 51164
Current children cumulated CPU time (s) 139.85
Current children cumulated vsize (Kb) 51164

[startup+150.007 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 9091
Raw data (/proc/9091/stat): 9091 (pb2sat) R 9090 9091 4061 0 -1 0 19591 0 0 0 14928 56 0 0 25 0 1 0 22145090 52391936 10426 4294967295 134512640 135987407 3221224560 3221223104 134811972 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9091/statm): 12791 10426 364 364 0 12427 0
[pid=9091] vsize: 51164
Current children cumulated CPU time (s) 149.84
Current children cumulated vsize (Kb) 51164
One traced child (pid=9091) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 158.218
CPU time (s): 158.058
CPU user time (s): 157.419
CPU system time (s): 0.638902
CPU usage (%): 99.8987
Max. virtual memory (cumulated for all children) (Kb): 51164

Verifier Data

Verifier:	OK	1120576