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-pilot.ja.opb
MD5SUM14008dcc965a2d6f0a6e83434c8b6300
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 230
Biggest coefficient in the objective function 694596606623744
Number of bits for the biggest coefficient in the objective function 50
Sum of the numbers in the objective function 4435721544887391
Number of bits of the sum of numbers in the objective function 52
Biggest number in a constraint 3141307404910592000000
Number of bits of the biggest number in a constraint 72
Biggest sum of numbers in a constraint 12713246235773393436672
Number of bits of the biggest sum of numbers74
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.75873
Number of variables45952
Total number of constraints1259
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 constraints1259
Minimum length of a constraint10
Maximum length of a constraint4005

Trace number 9902

Launcher Data

LAUNCH ON wulflinc17 THE 2005-09-23 16:08:40 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8653 boxname=wulflinc17 idbench=449 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  14008dcc965a2d6f0a6e83434c8b6300  /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-pilot.ja.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-pilot.ja.opb
IDLAUNCH: 8653
/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:        925420 kB
Buffers:         15772 kB
Cached:          74736 kB
SwapCached:          0 kB
Active:          50956 kB
Inactive:        42504 kB
HighTotal:      131008 kB
HighFree:        51912 kB
LowTotal:       903652 kB
LowFree:        873508 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10168 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:10:19 (client local time) WITH STATUS 1 IN 99.1329 SECONDS
stats: 8653 7 99.1329 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/8412/stat): 8412 (pb2sat) R 8411 8412 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21512065 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8412/statm): 373 2 364 364 0 9 0
[pid=8412] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-pilot.ja.opb

[startup+10.0021 s]
Raw data (loadavg): 0.93 0.94 0.93 2/55 8412
Raw data (/proc/8412/stat): 8412 (pb2sat) R 8411 8412 4060 0 -1 0 30727 0 0 0 928 68 0 0 25 0 1 0 21512065 98684928 19521 4294967295 134512640 135987407 3221224560 3221120928 134560516 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8412/statm): 24093 19521 364 364 0 23729 0
[pid=8412] vsize: 96372
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 96372

[startup+20.0027 s]
Raw data (loadavg): 0.94 0.94 0.93 2/55 8412
Raw data (/proc/8412/stat): 8412 (pb2sat) R 8411 8412 4060 0 -1 0 61849 0 0 0 1863 130 0 0 25 0 1 0 21512065 195854336 39065 4294967295 134512640 135987407 3221224560 3221119600 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8412/statm): 47816 39065 364 364 0 47452 0
[pid=8412] vsize: 191264
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 191264

[startup+30.0034 s]
Raw data (loadavg): 0.95 0.94 0.93 2/55 8412
Raw data (/proc/8412/stat): 8412 (pb2sat) R 8411 8412 4060 0 -1 0 98560 0 0 0 2788 201 0 0 25 0 1 0 21512065 380854272 64859 4294967295 134512640 135987407 3221224560 3221121280 134887487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8412/statm): 92982 64859 364 364 0 92618 0
[pid=8412] vsize: 371928
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 371928

[startup+40.004 s]
Raw data (loadavg): 0.95 0.95 0.93 2/55 8412
Raw data (/proc/8412/stat): 8412 (pb2sat) R 8411 8412 4060 0 -1 0 123502 0 0 0 3733 254 0 0 25 0 1 0 21512065 389029888 77281 4294967295 134512640 135987407 3221224560 3221120400 134556226 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8412/statm): 94978 77281 364 364 0 94614 0
[pid=8412] vsize: 379912
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 379912

[startup+50.0046 s]
Raw data (loadavg): 0.96 0.95 0.93 2/55 8412
Raw data (/proc/8412/stat): 8412 (pb2sat) R 8411 8412 4060 0 -1 0 168156 0 0 0 4640 342 0 0 25 0 1 0 21512065 529829888 100447 4294967295 134512640 135987407 3221224560 3221119884 134669201 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8412/statm): 129353 100447 364 364 0 128989 0
[pid=8412] vsize: 517412
Current children cumulated CPU time (s) 49.82
Current children cumulated vsize (Kb) 517412

[startup+60.0052 s]
Raw data (loadavg): 0.97 0.95 0.93 2/55 8412
Raw data (/proc/8412/stat): 8412 (pb2sat) R 8411 8412 4060 0 -1 0 187643 0 0 0 5600 380 0 0 25 0 1 0 21512065 557809664 119676 4294967295 134512640 135987407 3221224560 3221120560 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8412/statm): 136184 119676 364 364 0 135820 0
[pid=8412] vsize: 544736
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 544736

[startup+70.0048 s]
Raw data (loadavg): 0.97 0.95 0.93 2/55 8412
Raw data (/proc/8412/stat): 8412 (pb2sat) R 8411 8412 4060 0 -1 0 228590 0 0 0 6511 466 0 0 25 0 1 0 21512065 681857024 135830 4294967295 134512640 135987407 3221224560 3221120608 134560471 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8412/statm): 166469 135830 364 364 0 166105 0
[pid=8412] vsize: 665876
Current children cumulated CPU time (s) 69.77
Current children cumulated vsize (Kb) 665876

[startup+80.0054 s]
Raw data (loadavg): 0.97 0.95 0.93 2/55 8412
Raw data (/proc/8412/stat): 8412 (pb2sat) R 8411 8412 4060 0 -1 0 244562 0 0 0 7478 498 0 0 25 0 1 0 21512065 738390016 151591 4294967295 134512640 135987407 3221224560 3221121404 135499868 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8412/statm): 180271 151591 364 364 0 179907 0
[pid=8412] vsize: 721084
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 721084

[startup+90.006 s]
Raw data (loadavg): 0.98 0.95 0.93 2/55 8412
Raw data (/proc/8412/stat): 8412 (pb2sat) R 8411 8412 4060 0 -1 0 264443 0 0 0 8435 538 0 0 25 0 1 0 21512065 769548288 170870 4294967295 134512640 135987407 3221224560 3221120524 134637031 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8412/statm): 187878 170870 364 364 0 187514 0
[pid=8412] vsize: 751512
Current children cumulated CPU time (s) 89.73
Current children cumulated vsize (Kb) 751512
One traced child (pid=8412) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 99.4145
CPU time (s): 99.1329
CPU user time (s): 93.3058
CPU system time (s): 5.82711
CPU usage (%): 99.7168
Max. virtual memory (cumulated for all children) (Kb): 751512

Verifier Data

ERROR: no interpretation found !