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/miplib2003/normalized-mps-v2-20-10-a1c1s1.opb
MD5SUMab27bfd879fc4acac2b1d87511f2d291
Bench Categoryoptimization, big integers (OPTBIGINT)
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 41280
Biggest coefficient in the objective function 1342177280000000
Number of bits for the biggest coefficient in the objective function 51
Sum of the numbers in the objective function 260295726093315792
Number of bits of the sum of numbers in the objective function 58
Biggest number in a constraint 1342177280000000
Number of bits of the biggest number in a constraint 51
Biggest sum of numbers in a constraint 260295726093315792
Number of bits of the biggest sum of numbers58
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables107520
Total number of constraints3312
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints3312
Minimum length of a constraint50
Maximum length of a constraint820

Trace number 10056

Launcher Data

LAUNCH ON wulflinc23 THE 2005-09-23 16:43:06 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8813 boxname=wulflinc23 idbench=609 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  ab27bfd879fc4acac2b1d87511f2d291  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-a1c1s1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-a1c1s1.opb
IDLAUNCH: 8813
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.185
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		: 451.185
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:        902108 kB
Buffers:         14516 kB
Cached:          99316 kB
SwapCached:          0 kB
Active:          65908 kB
Inactive:        50844 kB
HighTotal:      131008 kB
HighFree:        31472 kB
LowTotal:       903652 kB
LowFree:        870636 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10244 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:45:07 (client local time) WITH STATUS 0 IN 119.134 SECONDS
stats: 8813 7 119.134 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/8959/stat): 8959 (pb2sat) R 8958 8959 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21712944 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8959/statm): 373 2 364 364 0 9 0
[pid=8959] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-a1c1s1.opb

[startup+10.0017 s]
Raw data (loadavg): 0.91 0.92 0.91 2/55 8959
Raw data (/proc/8959/stat): 8959 (pb2sat) R 8958 8959 4060 0 -1 0 2593 0 0 0 991 6 0 0 25 0 1 0 21712944 9637888 1905 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8959/statm): 2353 1905 364 364 0 1989 0
[pid=8959] vsize: 9412
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 9412

[startup+20.0023 s]
Raw data (loadavg): 0.92 0.92 0.91 2/55 8959
Raw data (/proc/8959/stat): 8959 (pb2sat) R 8958 8959 4060 0 -1 0 4186 0 0 0 1987 10 0 0 25 0 1 0 21712944 15224832 2752 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8959/statm): 3717 2752 364 364 0 3353 0
[pid=8959] vsize: 14868
Current children cumulated CPU time (s) 19.97
Current children cumulated vsize (Kb) 14868

[startup+30.0029 s]
Raw data (loadavg): 0.94 0.92 0.91 2/55 8959
Raw data (/proc/8959/stat): 8959 (pb2sat) R 8958 8959 4060 0 -1 0 4456 0 0 0 2986 11 0 0 25 0 1 0 21712944 15765504 3016 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8959/statm): 3849 3016 364 364 0 3485 0
[pid=8959] vsize: 15396
Current children cumulated CPU time (s) 29.97
Current children cumulated vsize (Kb) 15396

[startup+40.0036 s]
Raw data (loadavg): 0.95 0.93 0.91 2/55 8959
Raw data (/proc/8959/stat): 8959 (pb2sat) R 8958 8959 4060 0 -1 0 21880 0 0 0 3940 56 0 0 25 0 1 0 21712944 64954368 13616 4294967295 134512640 135987407 3221224560 3221202576 134558594 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8959/statm): 15858 13616 364 364 0 15494 0
[pid=8959] vsize: 63432
Current children cumulated CPU time (s) 39.96
Current children cumulated vsize (Kb) 63432

[startup+50.0042 s]
Raw data (loadavg): 0.95 0.93 0.91 2/55 8959
Raw data (/proc/8959/stat): 8959 (pb2sat) R 8958 8959 4060 0 -1 0 52602 0 0 0 4867 127 0 0 25 0 1 0 21712944 164720640 30012 4294967295 134512640 135987407 3221224560 3221214480 134556284 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8959/statm): 40215 30012 364 364 0 39851 0
[pid=8959] vsize: 160860
Current children cumulated CPU time (s) 49.94
Current children cumulated vsize (Kb) 160860

[startup+60.0049 s]
Raw data (loadavg): 0.96 0.93 0.91 2/55 8959
Raw data (/proc/8959/stat): 8959 (pb2sat) R 8958 8959 4060 0 -1 0 93398 0 0 0 5779 213 0 0 25 0 1 0 21712944 282267648 48556 4294967295 134512640 135987407 3221224560 3221208260 135479957 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8959/statm): 68913 48556 364 364 0 68549 0
[pid=8959] vsize: 275652
Current children cumulated CPU time (s) 59.92
Current children cumulated vsize (Kb) 275652

[startup+70.0055 s]
Raw data (loadavg): 0.97 0.93 0.91 2/55 8959
Raw data (/proc/8959/stat): 8959 (pb2sat) R 8958 8959 4060 0 -1 0 109256 0 0 0 6737 253 0 0 25 0 1 0 21712944 323121152 64129 4294967295 134512640 135987407 3221224560 3221207408 134876619 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8959/statm): 78887 64129 364 364 0 78523 0
[pid=8959] vsize: 315548
Current children cumulated CPU time (s) 69.9
Current children cumulated vsize (Kb) 315548

[startup+80.0062 s]
Raw data (loadavg): 0.97 0.93 0.91 2/55 8959
Raw data (/proc/8959/stat): 8959 (pb2sat) R 8958 8959 4060 0 -1 0 151542 0 0 0 7643 343 0 0 25 0 1 0 21712944 450928640 86754 4294967295 134512640 135987407 3221224560 3221214912 134639041 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8959/statm): 110090 86754 364 364 0 109726 0
[pid=8959] vsize: 440360
Current children cumulated CPU time (s) 79.86
Current children cumulated vsize (Kb) 440360

[startup+90.0058 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 8959
Raw data (/proc/8959/stat): 8959 (pb2sat) R 8958 8959 4060 0 -1 0 189974 0 0 0 8551 434 0 0 25 0 1 0 21712944 556457984 100358 4294967295 134512640 135987407 3221224560 3221206064 134856382 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8959/statm): 135854 100358 364 364 0 135490 0
[pid=8959] vsize: 543416
Current children cumulated CPU time (s) 89.85
Current children cumulated vsize (Kb) 543416

[startup+100.006 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 8959
Raw data (/proc/8959/stat): 8959 (pb2sat) R 8958 8959 4060 0 -1 0 203857 0 0 0 9513 470 0 0 25 0 1 0 21712944 601436160 114032 4294967295 134512640 135987407 3221224560 3221024656 134856587 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8959/statm): 146835 114032 364 364 0 146471 0
[pid=8959] vsize: 587340
Current children cumulated CPU time (s) 99.83
Current children cumulated vsize (Kb) 587340

[startup+110.007 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 8959
Raw data (/proc/8959/stat): 8959 (pb2sat) R 8958 8959 4060 0 -1 0 225385 0 0 0 10461 519 0 0 25 0 1 0 21712944 629415936 135300 4294967295 134512640 135987407 3221224560 3221221492 134562648 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8959/statm): 153666 135300 364 364 0 153302 0
[pid=8959] vsize: 614664
Current children cumulated CPU time (s) 109.8
Current children cumulated vsize (Kb) 614664



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+118.892 s]
Raw data (loadavg): 0.98 0.94 0.91 1/55 8959
Raw data (/proc/8959/stat): 8959 (pb2sat) T 8958 8959 4060 0 -1 0 252916 0 0 0 11292 573 0 0 25 0 1 0 21712944 943828992 162090 4294967295 134512640 135987407 3221224560 3221046892 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/8959/statm): 230427 162090 364 364 0 230063 0
[pid=8959] vsize: 921708
Current children cumulated CPU time (s) 118.65
Current children cumulated vsize (Kb) 921708

Sending SIGTERM to -8959
Sleeping 2 seconds

[startup+120.007 s]
Raw data (loadavg): 0.98 0.94 0.91 1/56 8960
Raw data (/proc/8959/stat): 8959 (pb2sat) S 8958 8959 4060 0 -1 0 252917 0 0 0 11306 573 0 0 25 0 1 0 21712944 943828992 162091 4294967295 134512640 135987407 3221224560 3221045304 135549753 0 16384 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8959/statm): 230427 162091 364 364 0 230063 0
[pid=8959] vsize: 921708
Current children cumulated CPU time (s) 118.79
Current children cumulated vsize (Kb) 921708
Sending SIGKILL to -8959
One traced child (pid=8959) 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): 121.233
CPU time (s): 119.134
CPU user time (s): 113.061
CPU system time (s): 6.07308
CPU usage (%): 98.2687
Max. virtual memory (cumulated for all children) (Kb): 921708

Verifier Data

ERROR: no interpretation found !