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/miplib3/normalized-mps-v2-13-7-dano3mip.opb
MD5SUMa9d7b9b5569d1dec981f274df34ef66e
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 20
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 1048575
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 65536000
Number of bits of the biggest number in a constraint 26
Biggest sum of numbers in a constraint 555744750
Number of bits of the biggest sum of numbers30
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables266924
Total number of constraints3778
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)600
Number of constraints which are nor clauses,nor cardinality constraints3178
Minimum length of a constraint1
Maximum length of a constraint10600

Trace number 10451

Launcher Data

LAUNCH ON wulflinc26 THE 2005-09-23 18:23:55 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9209 boxname=wulflinc26 idbench=1005 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a9d7b9b5569d1dec981f274df34ef66e  /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-13-7-dano3mip.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-13-7-dano3mip.opb
IDLAUNCH: 9209
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.055
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		: 451.055
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:        885792 kB
Buffers:         12004 kB
Cached:         119372 kB
SwapCached:          0 kB
Active:          67776 kB
Inactive:        66476 kB
HighTotal:      131008 kB
HighFree:        16716 kB
LowTotal:       903652 kB
LowFree:        869076 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9108 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 18:25:30 (client local time) WITH STATUS 0 IN 92.101 SECONDS
stats: 9209 7 92.101 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
s UNKNOWN

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/9356/stat): 9356 (pb2sat) R 9355 9356 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22286681 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9356/statm): 373 2 364 364 0 9 0
[pid=9356] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc26/normalized-mps-v2-13-7-dano3mip.opb

[startup+10.0022 s]
Raw data (loadavg): 0.88 0.95 0.93 2/55 9356
Raw data (/proc/9356/stat): 9356 (pb2sat) R 9355 9356 4005 0 -1 0 27586 0 0 0 937 59 0 0 25 0 1 0 22286681 83726336 16454 4294967295 134512640 135987407 3221224560 3221125312 134560727 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9356/statm): 20441 16454 364 364 0 20077 0
[pid=9356] vsize: 81764
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 81764

[startup+20.0029 s]
Raw data (loadavg): 0.90 0.95 0.93 2/55 9356
Raw data (/proc/9356/stat): 9356 (pb2sat) R 9355 9356 4005 0 -1 0 55677 0 0 0 1876 119 0 0 25 0 1 0 22286681 161304576 33304 4294967295 134512640 135987407 3221224560 3220938448 134560508 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9356/statm): 39381 33304 364 364 0 39017 0
[pid=9356] vsize: 157524
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 157524

[startup+30.0036 s]
Raw data (loadavg): 0.91 0.95 0.93 2/55 9356
Raw data (/proc/9356/stat): 9356 (pb2sat) R 9355 9356 4005 0 -1 0 95244 0 0 0 2792 200 0 0 25 0 1 0 22286681 311189504 50663 4294967295 134512640 135987407 3221224560 3221083904 135486786 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9356/statm): 75974 50663 364 364 0 75610 0
[pid=9356] vsize: 303896
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 303896

[startup+40.0042 s]
Raw data (loadavg): 0.93 0.96 0.93 2/55 9356
Raw data (/proc/9356/stat): 9356 (pb2sat) R 9355 9356 4005 0 -1 0 111584 0 0 0 3753 239 0 0 25 0 1 0 22286681 315785216 66734 4294967295 134512640 135987407 3221224560 3221115200 134560630 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9356/statm): 77096 66734 364 364 0 76732 0
[pid=9356] vsize: 308384
Current children cumulated CPU time (s) 39.92
Current children cumulated vsize (Kb) 308384

[startup+50.0049 s]
Raw data (loadavg): 0.94 0.96 0.93 2/55 9356
Raw data (/proc/9356/stat): 9356 (pb2sat) R 9355 9356 4005 0 -1 0 168993 0 0 0 4636 352 0 0 25 0 1 0 22286681 645734400 104535 4294967295 134512640 135987407 3221224560 3221067856 134887487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9356/statm): 157650 104539 364 364 0 157286 0
[pid=9356] vsize: 630600
Current children cumulated CPU time (s) 49.88
Current children cumulated vsize (Kb) 630600

[startup+60.0046 s]
Raw data (loadavg): 0.95 0.96 0.93 2/55 9356
Raw data (/proc/9356/stat): 9356 (pb2sat) R 9355 9356 4005 0 -1 0 190508 0 0 0 5584 404 0 0 25 0 1 0 22286681 582541312 101252 4294967295 134512640 135987407 3221224560 3221101120 134887798 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9356/statm): 142222 101253 364 364 0 141858 0
[pid=9356] vsize: 568888
Current children cumulated CPU time (s) 59.88
Current children cumulated vsize (Kb) 568888

[startup+70.0043 s]
Raw data (loadavg): 0.95 0.96 0.93 2/55 9356
Raw data (/proc/9356/stat): 9356 (pb2sat) R 9355 9356 4005 0 -1 0 206814 0 0 0 6544 443 0 0 25 0 1 0 22286681 587137024 117290 4294967295 134512640 135987407 3221224560 3221136332 135479880 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9356/statm): 143344 117291 364 364 0 142980 0
[pid=9356] vsize: 573376
Current children cumulated CPU time (s) 69.87
Current children cumulated vsize (Kb) 573376

[startup+80.005 s]
Raw data (loadavg): 0.96 0.96 0.93 2/55 9356
Raw data (/proc/9356/stat): 9356 (pb2sat) R 9355 9356 4005 0 -1 0 222104 0 0 0 7508 479 0 0 25 0 1 0 22286681 641523712 132327 4294967295 134512640 135987407 3221224560 3221102896 134877628 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9356/statm): 156622 132327 364 364 0 156258 0
[pid=9356] vsize: 626488
Current children cumulated CPU time (s) 79.87
Current children cumulated vsize (Kb) 626488

[startup+90.0046 s]
Raw data (loadavg): 0.97 0.96 0.93 2/55 9356
Raw data (/proc/9356/stat): 9356 (pb2sat) R 9355 9356 4005 0 -1 0 236391 0 0 0 8472 515 0 0 25 0 1 0 22286681 645713920 146380 4294967295 134512640 135987407 3221224560 3221195536 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9356/statm): 157645 146380 364 364 0 157281 0
[pid=9356] vsize: 630580
Current children cumulated CPU time (s) 89.87
Current children cumulated vsize (Kb) 630580



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+91.9101 s]
Raw data (loadavg): 0.97 0.96 0.93 1/55 9356
Raw data (/proc/9356/stat): 9356 (pb2sat) T 9355 9356 4005 0 -1 0 245717 0 0 0 8639 537 0 0 25 0 1 0 22286681 943771648 155429 4294967295 134512640 135987407 3221224560 3221092892 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/9356/statm): 230413 155429 364 364 0 230049 0
[pid=9356] vsize: 921652
Current children cumulated CPU time (s) 91.76
Current children cumulated vsize (Kb) 921652

Sending SIGTERM to -9356
Sleeping 2 seconds
Sending SIGKILL to -9356
One traced child (pid=9356) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 94.2354
CPU time (s): 92.101
CPU user time (s): 86.4079
CPU system time (s): 5.69313
CPU usage (%): 97.7351
Max. virtual memory (cumulated for all children) (Kb): 921652

Verifier Data

ERROR: no interpretation found !