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-scsd1.opb
MD5SUM18ccaf10caa576369b352d4f561a8c9e
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 22800
Biggest coefficient in the objective function 268435456000000000
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function 188158757647584526336
Number of bits of the sum of numbers in the objective function 68
Biggest number in a constraint 268435456000000000
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint 188158757647584526336
Number of bits of the biggest sum of numbers68
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables22800
Total number of constraints77
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 constraints77
Minimum length of a constraint600
Maximum length of a constraint1500

Trace number 9917

Launcher Data

LAUNCH ON wulflinc17 THE 2005-09-23 16:10:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8667 boxname=wulflinc17 idbench=463 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  18ccaf10caa576369b352d4f561a8c9e  /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-scsd1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-scsd1.opb
IDLAUNCH: 8667
/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:        929356 kB
Buffers:         15804 kB
Cached:          70692 kB
SwapCached:          0 kB
Active:          46664 kB
Inactive:        42772 kB
HighTotal:      131008 kB
HighFree:        55944 kB
LowTotal:       903652 kB
LowFree:        873412 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10200 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:12:17 (client local time) WITH STATUS 1 IN 109.539 SECONDS
stats: 8667 7 109.539 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/8523/stat): 8523 (pb2sat) R 8522 8523 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21522816 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8523/statm): 373 2 364 364 0 9 0
[pid=8523] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-scsd1.opb

[startup+10.002 s]
Raw data (loadavg): 0.92 0.94 0.92 2/55 8523
Raw data (/proc/8523/stat): 8523 (pb2sat) R 8522 8523 4060 0 -1 0 7031 0 0 0 981 16 0 0 25 0 1 0 21522816 23478272 4979 4294967295 134512640 135987407 3221224560 3220991008 134931420 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8523/statm): 5732 4979 364 364 0 5368 0
[pid=8523] vsize: 22928
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 22928

[startup+20.0026 s]
Raw data (loadavg): 0.93 0.94 0.92 2/55 8523
Raw data (/proc/8523/stat): 8523 (pb2sat) R 8522 8523 4060 0 -1 0 42268 0 0 0 1901 93 0 0 25 0 1 0 21522816 136974336 26108 4294967295 134512640 135987407 3221224560 3220981656 134828133 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8523/statm): 33441 26108 364 364 0 33077 0
[pid=8523] vsize: 133764
Current children cumulated CPU time (s) 19.94
Current children cumulated vsize (Kb) 133764

[startup+30.0032 s]
Raw data (loadavg): 0.94 0.94 0.92 2/55 8523
Raw data (/proc/8523/stat): 8523 (pb2sat) R 8522 8523 4060 0 -1 0 67270 0 0 0 2846 146 0 0 25 0 1 0 21522816 206315520 44726 4294967295 134512640 135987407 3221224560 3220983404 134637035 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8523/statm): 50370 44726 364 364 0 50006 0
[pid=8523] vsize: 201480
Current children cumulated CPU time (s) 29.92
Current children cumulated vsize (Kb) 201480

[startup+40.0028 s]
Raw data (loadavg): 0.95 0.94 0.92 2/55 8523
Raw data (/proc/8523/stat): 8523 (pb2sat) R 8522 8523 4060 0 -1 0 109886 0 0 0 3753 235 0 0 25 0 1 0 21522816 338509824 65004 4294967295 134512640 135987407 3221224560 3220982784 134636919 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8523/statm): 82644 65004 364 364 0 82280 0
[pid=8523] vsize: 330576
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 330576

[startup+50.0034 s]
Raw data (loadavg): 0.96 0.94 0.92 2/55 8523
Raw data (/proc/8523/stat): 8523 (pb2sat) R 8522 8523 4060 0 -1 0 127891 0 0 0 4712 274 0 0 25 0 1 0 21522816 397148160 82778 4294967295 134512640 135987407 3221224560 3220980716 134636964 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8523/statm): 96960 82778 364 364 0 96596 0
[pid=8523] vsize: 387840
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 387840

[startup+60.003 s]
Raw data (loadavg): 0.96 0.94 0.92 2/55 8523
Raw data (/proc/8523/stat): 8523 (pb2sat) R 8522 8523 4060 0 -1 0 172396 0 0 0 5621 360 0 0 25 0 1 0 21522816 540004352 106970 4294967295 134512640 135987407 3221224560 3220981616 134856481 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8523/statm): 131837 106970 364 364 0 131473 0
[pid=8523] vsize: 527348
Current children cumulated CPU time (s) 59.81
Current children cumulated vsize (Kb) 527348

[startup+70.0036 s]
Raw data (loadavg): 0.97 0.95 0.92 2/55 8523
Raw data (/proc/8523/stat): 8523 (pb2sat) R 8522 8523 4060 0 -1 0 213357 0 0 0 6533 445 0 0 25 0 1 0 21522816 663240704 123144 4294967295 134512640 135987407 3221224560 3220981436 135480715 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8523/statm): 161924 123144 364 364 0 161560 0
[pid=8523] vsize: 647696
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 647696

[startup+80.0042 s]
Raw data (loadavg): 0.97 0.95 0.92 2/55 8523
Raw data (/proc/8523/stat): 8523 (pb2sat) R 8522 8523 4060 0 -1 0 229352 0 0 0 7495 482 0 0 25 0 1 0 21522816 718962688 138934 4294967295 134512640 135987407 3221224560 3220981052 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8523/statm): 175528 138934 364 364 0 175164 0
[pid=8523] vsize: 702112
Current children cumulated CPU time (s) 79.77
Current children cumulated vsize (Kb) 702112

[startup+90.0038 s]
Raw data (loadavg): 0.98 0.95 0.92 2/55 8523
Raw data (/proc/8523/stat): 8523 (pb2sat) R 8522 8523 4060 0 -1 0 248489 0 0 0 8453 521 0 0 25 0 1 0 21522816 745455616 157824 4294967295 134512640 135987407 3221224560 3220980944 134856587 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8523/statm): 181996 157824 364 364 0 181632 0
[pid=8523] vsize: 727984
Current children cumulated CPU time (s) 89.74
Current children cumulated vsize (Kb) 727984

[startup+100.004 s]
Raw data (loadavg): 0.98 0.95 0.92 2/55 8523
Raw data (/proc/8523/stat): 8523 (pb2sat) R 8522 8523 4060 0 -1 0 267383 0 0 0 9414 558 0 0 25 0 1 0 21522816 771932160 176437 4294967295 134512640 135987407 3221224560 3220982684 134636977 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8523/statm): 188460 176437 364 364 0 188096 0
[pid=8523] vsize: 753840
Current children cumulated CPU time (s) 99.72
Current children cumulated vsize (Kb) 753840
One traced child (pid=8523) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 109.827
CPU time (s): 109.539
CPU user time (s): 103.496
CPU system time (s): 6.04308
CPU usage (%): 99.7378
Max. virtual memory (cumulated for all children) (Kb): 753840

Verifier Data

ERROR: no interpretation found !