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-boeing2.opb
MD5SUM9d4981de84e8fd488c4493c292301fa3
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 3114
Biggest coefficient in the objective function 40265318400000
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 2533036563346675
Number of bits of the sum of numbers in the objective function 52
Biggest number in a constraint 431563682611200
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 17042207919312540
Number of bits of the biggest sum of numbers54
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables3371
Total number of constraints213
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 constraints213
Minimum length of a constraint12
Maximum length of a constraint2370

Trace number 9943

Launcher Data

LAUNCH ON wulflinc5 THE 2005-09-23 16:14:39 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8692 boxname=wulflinc5 idbench=488 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9d4981de84e8fd488c4493c292301fa3  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-boeing2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-boeing2.opb
IDLAUNCH: 8692
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.158
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	: 2
cpu MHz		: 451.158
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:        934772 kB
Buffers:         14832 kB
Cached:          66292 kB
SwapCached:          0 kB
Active:          44672 kB
Inactive:        39328 kB
HighTotal:      131008 kB
HighFree:        60816 kB
LowTotal:       903652 kB
LowFree:        873956 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6976 kB
Slab:            10388 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:16:35 (client local time) WITH STATUS 1 IN 115.296 SECONDS
stats: 8692 7 115.296 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/8561/stat): 8561 (pb2sat) R 8560 8561 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21562118 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8561/statm): 373 2 364 364 0 9 0
[pid=8561] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-boeing2.opb

[startup+10.002 s]
Raw data (loadavg): 0.93 0.95 0.97 2/55 8561
Raw data (/proc/8561/stat): 8561 (pb2sat) R 8560 8561 4060 0 -1 0 30133 0 0 0 934 61 0 0 25 0 1 0 21562118 97366016 19003 4294967295 134512640 135987407 3221224560 3220976092 134635478 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8561/statm): 23771 19003 364 364 0 23407 0
[pid=8561] vsize: 95084
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 95084

[startup+20.0027 s]
Raw data (loadavg): 0.94 0.96 0.97 2/55 8561
Raw data (/proc/8561/stat): 8561 (pb2sat) R 8560 8561 4060 0 -1 0 60208 0 0 0 1870 122 0 0 25 0 1 0 21562118 192806912 37872 4294967295 134512640 135987407 3221224560 3220978924 134854860 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8561/statm): 47072 37872 364 364 0 46708 0
[pid=8561] vsize: 188288
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 188288

[startup+30.0035 s]
Raw data (loadavg): 0.95 0.96 0.97 2/55 8561
Raw data (/proc/8561/stat): 8561 (pb2sat) R 8560 8561 4060 0 -1 0 102188 0 0 0 2780 209 0 0 25 0 1 0 21562118 324591616 57662 4294967295 134512640 135987407 3221224560 3220981168 134887879 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8561/statm): 79246 57662 364 364 0 78882 0
[pid=8561] vsize: 316984
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 316984

[startup+40.0042 s]
Raw data (loadavg): 0.95 0.96 0.97 2/55 8561
Raw data (/proc/8561/stat): 8561 (pb2sat) R 8560 8561 4060 0 -1 0 119215 0 0 0 3749 238 0 0 25 0 1 0 21562118 381964288 74483 4294967295 134512640 135987407 3221224560 3220984512 134558993 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8561/statm): 93253 74483 364 364 0 92889 0
[pid=8561] vsize: 373012
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 373012

[startup+50.0049 s]
Raw data (loadavg): 0.96 0.96 0.97 2/55 8561
Raw data (/proc/8561/stat): 8561 (pb2sat) R 8560 8561 4060 0 -1 0 137834 0 0 0 4712 273 0 0 25 0 1 0 21562118 408739840 92880 4294967295 134512640 135987407 3221224560 3220980452 134789814 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8561/statm): 99790 92880 364 364 0 99426 0
[pid=8561] vsize: 399160
Current children cumulated CPU time (s) 49.85
Current children cumulated vsize (Kb) 399160

[startup+60.0057 s]
Raw data (loadavg): 0.97 0.96 0.97 2/55 8561
Raw data (/proc/8561/stat): 8561 (pb2sat) R 8560 8561 4060 0 -1 0 201979 0 0 0 5580 400 0 0 25 0 1 0 21562118 745590784 137457 4294967295 134512640 135987407 3221224560 3220981168 134887476 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8561/statm): 182029 137457 364 364 0 181665 0
[pid=8561] vsize: 728116
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 728116

[startup+70.0064 s]
Raw data (loadavg): 0.97 0.96 0.97 2/55 8561
Raw data (/proc/8561/stat): 8561 (pb2sat) R 8560 8561 4060 0 -1 0 217193 0 0 0 6543 436 0 0 25 0 1 0 21562118 698077184 127911 4294967295 134512640 135987407 3221224560 3220979076 134636948 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8561/statm): 170429 127911 364 364 0 170065 0
[pid=8561] vsize: 681716
Current children cumulated CPU time (s) 69.79
Current children cumulated vsize (Kb) 681716

[startup+80.0072 s]
Raw data (loadavg): 0.98 0.96 0.97 2/55 8561
Raw data (/proc/8561/stat): 8561 (pb2sat) R 8560 8561 4060 0 -1 0 235375 0 0 0 7507 470 0 0 25 0 1 0 21562118 725241856 145881 4294967295 134512640 135987407 3221224560 3220985152 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8561/statm): 177061 145881 364 364 0 176697 0
[pid=8561] vsize: 708244
Current children cumulated CPU time (s) 79.77
Current children cumulated vsize (Kb) 708244

[startup+90.0079 s]
Raw data (loadavg): 0.98 0.96 0.97 2/55 8561
Raw data (/proc/8561/stat): 8561 (pb2sat) R 8560 8561 4060 0 -1 0 253575 0 0 0 8471 504 0 0 25 0 1 0 21562118 751624192 163861 4294967295 134512640 135987407 3221224560 3220981792 134789820 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8561/statm): 183502 163861 364 364 0 183138 0
[pid=8561] vsize: 734008
Current children cumulated CPU time (s) 89.75
Current children cumulated vsize (Kb) 734008

[startup+100.008 s]
Raw data (loadavg): 0.98 0.96 0.97 2/55 8561
Raw data (/proc/8561/stat): 8561 (pb2sat) R 8560 8561 4060 0 -1 0 269317 0 0 0 9437 536 0 0 25 0 1 0 21562118 823881728 179413 4294967295 134512640 135987407 3221224560 3220984288 134877726 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8561/statm): 201143 179413 364 364 0 200779 0
[pid=8561] vsize: 804572
Current children cumulated CPU time (s) 99.73
Current children cumulated vsize (Kb) 804572

[startup+110.008 s]
Raw data (loadavg): 0.98 0.96 0.97 2/55 8561
Raw data (/proc/8561/stat): 8561 (pb2sat) R 8560 8561 4060 0 -1 0 280851 0 0 0 10413 559 0 0 25 0 1 0 21562118 840638464 190808 4294967295 134512640 135987407 3221224560 3221222996 135479922 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8561/statm): 205234 190808 364 364 0 204870 0
[pid=8561] vsize: 820936
Current children cumulated CPU time (s) 109.72
Current children cumulated vsize (Kb) 820936
One traced child (pid=8561) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 115.585
CPU time (s): 115.296
CPU user time (s): 109.307
CPU system time (s): 5.98909
CPU usage (%): 99.7507
Max. virtual memory (cumulated for all children) (Kb): 820936

Verifier Data

ERROR: no interpretation found !