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-forplan.opb
MD5SUMdfc6e74660e6079f7108351001d51bc8
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 9340
Biggest coefficient in the objective function 6454798974976000
Number of bits for the biggest coefficient in the objective function 53
Sum of the numbers in the objective function 1138676908426644728
Number of bits of the sum of numbers in the objective function 60
Biggest number in a constraint 6454798974976000
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 1138676908426644728
Number of bits of the biggest sum of numbers60
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables12528
Total number of constraints155
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 constraints155
Minimum length of a constraint27
Maximum length of a constraint9090

Trace number 9884

Launcher Data

LAUNCH ON wulflinc19 THE 2005-09-23 16:05:48 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8636 boxname=wulflinc19 idbench=432 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  dfc6e74660e6079f7108351001d51bc8  /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-forplan.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-forplan.opb
IDLAUNCH: 8636
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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		: 451.169
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	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        922400 kB
Buffers:         15284 kB
Cached:          77060 kB
SwapCached:          0 kB
Active:          49792 kB
Inactive:        45412 kB
HighTotal:      131008 kB
HighFree:        50484 kB
LowTotal:       903652 kB
LowFree:        871916 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11440 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:07:27 (client local time) WITH STATUS 1 IN 98.649 SECONDS
stats: 8636 7 98.649 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/7686/stat): 7686 (pb2sat) R 7685 7686 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21492620 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/7686/statm): 373 2 364 364 0 9 0
[pid=7686] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-forplan.opb

[startup+10.0016 s]
Raw data (loadavg): 0.87 0.94 0.94 2/55 7686
Raw data (/proc/7686/stat): 7686 (pb2sat) R 7685 7686 4060 0 -1 0 24783 0 0 0 940 55 0 0 25 0 1 0 21492620 77099008 16714 4294967295 134512640 135987407 3221224560 3218222180 134537406 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7686/statm): 18823 16714 364 364 0 18459 0
[pid=7686] vsize: 75292
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 75292

[startup+20.0024 s]
Raw data (loadavg): 0.89 0.94 0.94 2/55 7686
Raw data (/proc/7686/stat): 7686 (pb2sat) R 7685 7686 4060 0 -1 0 58920 0 0 0 1863 129 0 0 25 0 1 0 21492620 195670016 36538 4294967295 134512640 135987407 3221224560 3218183588 134558501 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7686/statm): 47771 36538 364 364 0 47407 0
[pid=7686] vsize: 191084
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 191084

[startup+30.0032 s]
Raw data (loadavg): 0.90 0.94 0.94 2/55 7686
Raw data (/proc/7686/stat): 7686 (pb2sat) R 7685 7686 4060 0 -1 0 91903 0 0 0 2795 192 0 0 25 0 1 0 21492620 282505216 59558 4294967295 134512640 135987407 3221224560 3218182384 134556296 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7686/statm): 68971 59558 364 364 0 68607 0
[pid=7686] vsize: 275884
Current children cumulated CPU time (s) 29.87
Current children cumulated vsize (Kb) 275884

[startup+40.003 s]
Raw data (loadavg): 0.92 0.94 0.94 2/55 7686
Raw data (/proc/7686/stat): 7686 (pb2sat) R 7685 7686 4060 0 -1 0 121864 0 0 0 3730 255 0 0 25 0 1 0 21492620 391802880 76996 4294967295 134512640 135987407 3221224560 3218190464 134856438 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7686/statm): 95655 76996 364 364 0 95291 0
[pid=7686] vsize: 382620
Current children cumulated CPU time (s) 39.85
Current children cumulated vsize (Kb) 382620

[startup+50.0038 s]
Raw data (loadavg): 0.93 0.94 0.94 2/55 7686
Raw data (/proc/7686/stat): 7686 (pb2sat) R 7685 7686 4060 0 -1 0 166396 0 0 0 4643 338 0 0 25 0 1 0 21492620 534777856 101889 4294967295 134512640 135987407 3221224560 3218203676 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7686/statm): 130561 101889 364 364 0 130197 0
[pid=7686] vsize: 522244
Current children cumulated CPU time (s) 49.81
Current children cumulated vsize (Kb) 522244

[startup+60.0036 s]
Raw data (loadavg): 0.94 0.95 0.94 2/55 7686
Raw data (/proc/7686/stat): 7686 (pb2sat) R 7685 7686 4060 0 -1 0 193927 0 0 0 5589 389 0 0 25 0 1 0 21492620 764223488 129163 4294967295 134512640 135987407 3221224560 3218185952 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7686/statm): 186578 129163 364 364 0 186214 0
[pid=7686] vsize: 746312
Current children cumulated CPU time (s) 59.78
Current children cumulated vsize (Kb) 746312

[startup+70.0044 s]
Raw data (loadavg): 0.95 0.95 0.94 2/55 7686
Raw data (/proc/7686/stat): 7686 (pb2sat) R 7685 7686 4060 0 -1 0 228757 0 0 0 6511 466 0 0 25 0 1 0 21492620 723468288 139175 4294967295 134512640 135987407 3221224560 3218194784 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7686/statm): 176628 139175 364 364 0 176264 0
[pid=7686] vsize: 706512
Current children cumulated CPU time (s) 69.77
Current children cumulated vsize (Kb) 706512

[startup+80.0053 s]
Raw data (loadavg): 0.96 0.95 0.94 2/55 7686
Raw data (/proc/7686/stat): 7686 (pb2sat) R 7685 7686 4060 0 -1 0 245961 0 0 0 7474 500 0 0 25 0 1 0 21492620 748204032 156152 4294967295 134512640 135987407 3221224560 3218236092 135484987 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7686/statm): 182667 156152 364 364 0 182303 0
[pid=7686] vsize: 730668
Current children cumulated CPU time (s) 79.74
Current children cumulated vsize (Kb) 730668

[startup+90.0051 s]
Raw data (loadavg): 0.96 0.95 0.94 2/55 7686
Raw data (/proc/7686/stat): 7686 (pb2sat) R 7685 7686 4060 0 -1 0 266982 0 0 0 8429 542 0 0 25 0 1 0 21492620 782577664 176912 4294967295 134512640 135987407 3221224560 3218176040 134865857 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7686/statm): 191059 176912 364 364 0 190695 0
[pid=7686] vsize: 764236
Current children cumulated CPU time (s) 89.71
Current children cumulated vsize (Kb) 764236
One traced child (pid=7686) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 98.9353
CPU time (s): 98.649
CPU user time (s): 92.8589
CPU system time (s): 5.79012
CPU usage (%): 99.7106
Max. virtual memory (cumulated for all children) (Kb): 764236

Verifier Data

ERROR: no interpretation found !