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/MIPLIB/miplib2003/normalized-mps-v2-20-10-gesa2-o.opb
MD5SUM80af83dd4f7c0078ae8fafa661248d8f
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 10368
Biggest coefficient in the objective function 418848431931392
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 180197911475330400
Number of bits of the sum of numbers in the objective function 58
Biggest number in a constraint 418848431931392
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 180197911475330400
Number of bits of the biggest sum of numbers58
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables16224
Total number of constraints1968
Number of constraints which are clauses192
Number of constraints which are cardinality constraints (but not clauses)384
Number of constraints which are nor clauses,nor cardinality constraints1392
Minimum length of a constraint1
Maximum length of a constraint309

Trace number 10011

Launcher Data

LAUNCH ON wulflinc2 THE 2005-09-23 16:31:19 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8771 boxname=wulflinc2 idbench=567 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  80af83dd4f7c0078ae8fafa661248d8f  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-gesa2-o.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-gesa2-o.opb
IDLAUNCH: 8771
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.261
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		: 451.261
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:        896416 kB
Buffers:         16700 kB
Cached:         101688 kB
SwapCached:          0 kB
Active:          46452 kB
Inactive:        74816 kB
HighTotal:      131008 kB
HighFree:        33236 kB
LowTotal:       903652 kB
LowFree:        863180 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11352 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:33:08 (client local time) WITH STATUS 1 IN 108.39 SECONDS
stats: 8771 7 108.39 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/9271/stat): 9271 (pb2sat) R 9270 9271 4070 0 -1 0 18 0 0 0 0 0 0 0 22 0 1 0 21666098 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9271/statm): 373 2 364 364 0 9 0
[pid=9271] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-gesa2-o.opb

[startup+10.0015 s]
Raw data (loadavg): 0.92 0.95 0.98 2/55 9271
Raw data (/proc/9271/stat): 9271 (pb2sat) R 9270 9271 4070 0 -1 0 28449 0 0 0 932 64 0 0 25 0 1 0 21666098 96034816 17300 4294967295 134512640 135987407 3221224560 3221118320 134877726 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9271/statm): 23446 17300 364 364 0 23082 0
[pid=9271] vsize: 93784
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 93784

[startup+20.0022 s]
Raw data (loadavg): 0.93 0.95 0.98 2/55 9271
Raw data (/proc/9271/stat): 9271 (pb2sat) R 9270 9271 4070 0 -1 0 59188 0 0 0 1870 123 0 0 25 0 1 0 21666098 192446464 36815 4294967295 134512640 135987407 3221224560 3221118012 134865970 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9271/statm): 46984 36815 364 364 0 46620 0
[pid=9271] vsize: 187936
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 187936

[startup+30.0029 s]
Raw data (loadavg): 0.94 0.95 0.98 2/55 9271
Raw data (/proc/9271/stat): 9271 (pb2sat) R 9270 9271 4070 0 -1 0 93600 0 0 0 2798 189 0 0 25 0 1 0 21666098 377454592 61160 4294967295 134512640 135987407 3221224560 3221120576 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9271/statm): 92152 61160 364 364 0 91788 0
[pid=9271] vsize: 368608
Current children cumulated CPU time (s) 29.87
Current children cumulated vsize (Kb) 368608

[startup+40.0026 s]
Raw data (loadavg): 0.95 0.96 0.98 2/55 9271
Raw data (/proc/9271/stat): 9271 (pb2sat) R 9270 9271 4070 0 -1 0 120029 0 0 0 3743 243 0 0 25 0 1 0 21666098 384462848 75085 4294967295 134512640 135987407 3221224560 3221118416 134878095 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9271/statm): 93863 75085 364 364 0 93499 0
[pid=9271] vsize: 375452
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 375452

[startup+50.0023 s]
Raw data (loadavg): 0.96 0.96 0.98 2/55 9271
Raw data (/proc/9271/stat): 9271 (pb2sat) R 9270 9271 4070 0 -1 0 151707 0 0 0 4679 302 0 0 25 0 1 0 21666098 575221760 106060 4294967295 134512640 135987407 3221224560 3221117760 134861207 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9271/statm): 140435 106060 364 364 0 140071 0
[pid=9271] vsize: 561740
Current children cumulated CPU time (s) 49.81
Current children cumulated vsize (Kb) 561740

[startup+60.0031 s]
Raw data (loadavg): 0.96 0.96 0.98 2/55 9271
Raw data (/proc/9271/stat): 9271 (pb2sat) R 9270 9271 4070 0 -1 0 202147 0 0 0 5573 404 0 0 25 0 1 0 21666098 751198208 136888 4294967295 134512640 135987407 3221224560 3221127632 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9271/statm): 183398 136888 364 364 0 183034 0
[pid=9271] vsize: 733592
Current children cumulated CPU time (s) 59.77
Current children cumulated vsize (Kb) 733592

[startup+70.0038 s]
Raw data (loadavg): 0.97 0.96 0.98 2/55 9271
Raw data (/proc/9271/stat): 9271 (pb2sat) R 9270 9271 4070 0 -1 0 221009 0 0 0 6528 448 0 0 25 0 1 0 21666098 705441792 130981 4294967295 134512640 135987407 3221224560 3221119820 134636975 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9271/statm): 172227 130981 364 364 0 171863 0
[pid=9271] vsize: 688908
Current children cumulated CPU time (s) 69.76
Current children cumulated vsize (Kb) 688908

[startup+80.0045 s]
Raw data (loadavg): 0.97 0.96 0.98 2/55 9271
Raw data (/proc/9271/stat): 9271 (pb2sat) R 9270 9271 4070 0 -1 0 240044 0 0 0 7490 484 0 0 25 0 1 0 21666098 733016064 149785 4294967295 134512640 135987407 3221224560 3221117840 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9271/statm): 178959 149785 364 364 0 178595 0
[pid=9271] vsize: 715836
Current children cumulated CPU time (s) 79.74
Current children cumulated vsize (Kb) 715836

[startup+90.0042 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 9271
Raw data (/proc/9271/stat): 9271 (pb2sat) R 9270 9271 4070 0 -1 0 259090 0 0 0 8451 520 0 0 25 0 1 0 21666098 760647680 168597 4294967295 134512640 135987407 3221224560 3221121872 134639146 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9271/statm): 185705 168597 364 364 0 185341 0
[pid=9271] vsize: 742820
Current children cumulated CPU time (s) 89.71
Current children cumulated vsize (Kb) 742820

[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.98 2/55 9271
Raw data (/proc/9271/stat): 9271 (pb2sat) R 9270 9271 4070 0 -1 0 274956 0 0 0 9416 553 0 0 25 0 1 0 21666098 833224704 184262 4294967295 134512640 135987407 3221224560 3221119328 134877730 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9271/statm): 203424 184262 364 364 0 203060 0
[pid=9271] vsize: 813696
Current children cumulated CPU time (s) 99.69
Current children cumulated vsize (Kb) 813696
One traced child (pid=9271) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 108.698
CPU time (s): 108.39
CPU user time (s): 102.452
CPU system time (s): 5.9371
CPU usage (%): 99.7159
Max. virtual memory (cumulated for all children) (Kb): 813696

Verifier Data

ERROR: no interpretation found !