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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-gfrd-pnc.opb
MD5SUM512275544dbdaee426418ff6e8981436
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 27836
Biggest coefficient in the objective function 698469056512
Number of bits for the biggest coefficient in the objective function 40
Sum of the numbers in the objective function 44081965661371
Number of bits of the sum of numbers in the objective function 46
Biggest number in a constraint 698469056512
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 44081965661371
Number of bits of the biggest sum of numbers46
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables27888
Total number of constraints874
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 constraints874
Minimum length of a constraint11
Maximum length of a constraint246

Trace number 9888

Launcher Data

LAUNCH ON wulflinc17 THE 2005-09-23 16:06:25 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8638 boxname=wulflinc17 idbench=434 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  512275544dbdaee426418ff6e8981436  /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-gfrd-pnc.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-gfrd-pnc.opb
IDLAUNCH: 8638
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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		: 451.161
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:        931824 kB
Buffers:         15740 kB
Cached:          68444 kB
SwapCached:          0 kB
Active:          45612 kB
Inactive:        41476 kB
HighTotal:      131008 kB
HighFree:        58268 kB
LowTotal:       903652 kB
LowFree:        873556 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              32 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10160 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:08:29 (client local time) WITH STATUS 1 IN 123.474 SECONDS
stats: 8638 7 123.474 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc

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/8301/stat): 8301 (pb2sat) R 8300 8301 4060 0 -1 0 18 0 0 0 0 0 0 0 20 0 1 0 21498640 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8301/statm): 373 2 364 364 0 9 0
[pid=8301] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-gfrd-pnc.opb

[startup+10.0013 s]
Raw data (loadavg): 0.91 0.95 0.94 2/55 8301
Raw data (/proc/8301/stat): 8301 (pb2sat) R 8300 8301 4060 0 -1 0 2602 0 0 0 992 6 0 0 25 0 1 0 21498640 9641984 1914 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8301/statm): 2354 1914 364 364 0 1990 0
[pid=8301] vsize: 9416
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 9416

[startup+20.0028 s]
Raw data (loadavg): 0.92 0.95 0.94 2/55 8301
Raw data (/proc/8301/stat): 8301 (pb2sat) R 8300 8301 4060 0 -1 0 27696 0 0 0 1930 65 0 0 25 0 1 0 21498640 87797760 16484 4294967295 134512640 135987407 3221224560 3221203088 134877939 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8301/statm): 21435 16484 364 364 0 21071 0
[pid=8301] vsize: 85740
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 85740

[startup+30.0035 s]
Raw data (loadavg): 0.93 0.95 0.94 2/55 8301
Raw data (/proc/8301/stat): 8301 (pb2sat) R 8300 8301 4060 0 -1 0 57677 0 0 0 2864 130 0 0 25 0 1 0 21498640 192258048 35257 4294967295 134512640 135987407 3221224560 3221201696 134856425 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8301/statm): 46938 35257 364 364 0 46574 0
[pid=8301] vsize: 187752
Current children cumulated CPU time (s) 29.94
Current children cumulated vsize (Kb) 187752

[startup+40.0041 s]
Raw data (loadavg): 0.94 0.95 0.94 2/55 8301
Raw data (/proc/8301/stat): 8301 (pb2sat) R 8300 8301 4060 0 -1 0 88804 0 0 0 3801 189 0 0 25 0 1 0 21498640 275648512 56462 4294967295 134512640 135987407 3221224560 3221202496 134537552 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8301/statm): 67297 56462 364 364 0 66933 0
[pid=8301] vsize: 269188
Current children cumulated CPU time (s) 39.9
Current children cumulated vsize (Kb) 269188

[startup+50.0047 s]
Raw data (loadavg): 0.95 0.95 0.94 2/55 8301
Raw data (/proc/8301/stat): 8301 (pb2sat) R 8300 8301 4060 0 -1 0 117006 0 0 0 4742 246 0 0 25 0 1 0 21498640 382242816 72181 4294967295 134512640 135987407 3221224560 3221205092 135487880 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8301/statm): 93321 72181 364 364 0 92957 0
[pid=8301] vsize: 373284
Current children cumulated CPU time (s) 49.88
Current children cumulated vsize (Kb) 373284

[startup+60.0043 s]
Raw data (loadavg): 0.96 0.95 0.94 2/55 8301
Raw data (/proc/8301/stat): 8301 (pb2sat) R 8300 8301 4060 0 -1 0 135526 0 0 0 5704 282 0 0 25 0 1 0 21498640 408281088 90474 4294967295 134512640 135987407 3221224560 3221205536 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8301/statm): 99678 90474 364 364 0 99314 0
[pid=8301] vsize: 398712
Current children cumulated CPU time (s) 59.86
Current children cumulated vsize (Kb) 398712

[startup+70.0049 s]
Raw data (loadavg): 0.96 0.95 0.94 2/55 8301
Raw data (/proc/8301/stat): 8301 (pb2sat) R 8300 8301 4060 0 -1 0 176218 0 0 0 6620 361 0 0 25 0 1 0 21498640 544694272 111591 4294967295 134512640 135987407 3221224560 3221203824 135477380 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8301/statm): 132982 111591 364 364 0 132618 0
[pid=8301] vsize: 531928
Current children cumulated CPU time (s) 69.81
Current children cumulated vsize (Kb) 531928

[startup+80.0055 s]
Raw data (loadavg): 0.97 0.95 0.94 2/55 8301
Raw data (/proc/8301/stat): 8301 (pb2sat) R 8300 8301 4060 0 -1 0 211062 0 0 0 7541 440 0 0 25 0 1 0 21498640 647102464 121664 4294967295 134512640 135987407 3221224560 3221202544 134537371 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8301/statm): 157984 121664 364 364 0 157620 0
[pid=8301] vsize: 631936
Current children cumulated CPU time (s) 79.81
Current children cumulated vsize (Kb) 631936

[startup+90.0061 s]
Raw data (loadavg): 0.97 0.95 0.94 2/55 8301
Raw data (/proc/8301/stat): 8301 (pb2sat) R 8300 8301 4060 0 -1 0 221123 0 0 0 8520 461 0 0 25 0 1 0 21498640 680656896 131536 4294967295 134512640 135987407 3221224560 3221205196 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8301/statm): 166176 131536 364 364 0 165812 0
[pid=8301] vsize: 664704
Current children cumulated CPU time (s) 89.81
Current children cumulated vsize (Kb) 664704

[startup+100.006 s]
Raw data (loadavg): 0.98 0.95 0.94 2/55 8301
Raw data (/proc/8301/stat): 8301 (pb2sat) R 8300 8301 4060 0 -1 0 233323 0 0 0 9496 485 0 0 25 0 1 0 21498640 682278912 143516 4294967295 134512640 135987407 3221224560 3221204180 134641668 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8301/statm): 166572 143516 364 364 0 166208 0
[pid=8301] vsize: 666288
Current children cumulated CPU time (s) 99.81
Current children cumulated vsize (Kb) 666288

[startup+110.005 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8301
Raw data (/proc/8301/stat): 8301 (pb2sat) R 8300 8301 4060 0 -1 0 246842 0 0 0 10470 510 0 0 25 0 1 0 21498640 689582080 156816 4294967295 134512640 135987407 3221224560 3221205416 135488042 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8301/statm): 168355 156816 364 364 0 167991 0
[pid=8301] vsize: 673420
Current children cumulated CPU time (s) 109.8
Current children cumulated vsize (Kb) 673420

[startup+120.006 s]
Raw data (loadavg): 0.98 0.96 0.94 2/55 8301
Raw data (/proc/8301/stat): 8301 (pb2sat) R 8300 8301 4060 0 -1 0 255213 0 0 0 11439 541 0 0 25 0 1 0 21498640 387764224 94106 4294967295 134512640 135987407 3221224560 3221223224 135477306 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8301/statm): 94669 94106 364 364 0 94305 0
[pid=8301] vsize: 378676
Current children cumulated CPU time (s) 119.8
Current children cumulated vsize (Kb) 378676
One traced child (pid=8301) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 123.678
CPU time (s): 123.474
CPU user time (s): 117.862
CPU system time (s): 5.61215
CPU usage (%): 99.8353
Max. virtual memory (cumulated for all children) (Kb): 673420

Verifier Data

ERROR: no interpretation found !