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-v2-13-7/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-neos3.opb
MD5SUM640a68756f6bc046860dd4d0fa3890ca
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 105
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 10485755
Number of bits of the sum of numbers in the objective function 24
Biggest number in a constraint 2396687647113216000
Number of bits of the biggest number in a constraint 62
Biggest sum of numbers in a constraint 282492798299765243904
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 variables28623
Total number of constraints2841
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)1377
Number of constraints which are nor clauses,nor cardinality constraints1464
Minimum length of a constraint1
Maximum length of a constraint3188

Trace number 10559

Launcher Data

LAUNCH ON wulflinc5 THE 2005-09-23 19:00:15 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9318 boxname=wulflinc5 idbench=1114 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  640a68756f6bc046860dd4d0fa3890ca  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-neos3.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-neos3.opb
IDLAUNCH: 9318
/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:        927480 kB
Buffers:         15888 kB
Cached:          72240 kB
SwapCached:          0 kB
Active:          46524 kB
Inactive:        44456 kB
HighTotal:      131008 kB
HighFree:        54908 kB
LowTotal:       903652 kB
LowFree:        872572 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              52 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10656 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 19:01:54 (client local time) WITH STATUS 1 IN 98.2051 SECONDS
stats: 9318 7 98.2051 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/10862/stat): 10862 (pb2sat) R 10861 10862 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22555850 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10862/statm): 373 2 364 364 0 9 0
[pid=10862] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-neos3.opb

[startup+10.001 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 10862
Raw data (/proc/10862/stat): 10862 (pb2sat) R 10861 10862 4060 0 -1 0 30800 0 0 0 931 64 0 0 25 0 1 0 22555850 99450880 19606 4294967295 134512640 135987407 3221224560 3220687456 134639105 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10862/statm): 24280 19606 364 364 0 23916 0
[pid=10862] vsize: 97120
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 97120

[startup+20.0017 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 10862
Raw data (/proc/10862/stat): 10862 (pb2sat) R 10861 10862 4060 0 -1 0 61871 0 0 0 1867 126 0 0 25 0 1 0 22555850 196624384 39112 4294967295 134512640 135987407 3221224560 3220687136 134557777 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10862/statm): 48004 39112 364 364 0 47640 0
[pid=10862] vsize: 192016
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 192016

[startup+30.0025 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 10862
Raw data (/proc/10862/stat): 10862 (pb2sat) R 10861 10862 4060 0 -1 0 94594 0 0 0 2796 192 0 0 25 0 1 0 22555850 382287872 60804 4294967295 134512640 135987407 3221224560 3220686496 134887492 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10862/statm): 93332 60804 364 364 0 92968 0
[pid=10862] vsize: 373328
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 373328

[startup+40.0032 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 10862
Raw data (/proc/10862/stat): 10862 (pb2sat) R 10861 10862 4060 0 -1 0 123502 0 0 0 3737 250 0 0 25 0 1 0 22555850 389701632 77199 4294967295 134512640 135987407 3221224560 3220686352 134533897 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10862/statm): 95142 77199 364 364 0 94778 0
[pid=10862] vsize: 380568
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 380568

[startup+50.004 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 10864
Raw data (/proc/10862/stat): 10862 (pb2sat) R 10861 10862 4060 0 -1 0 168650 0 0 0 4644 336 0 0 25 0 1 0 22555850 530575360 100363 4294967295 134512640 135987407 3221224560 3220686412 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10862/statm): 129535 100363 364 364 0 129171 0
[pid=10862] vsize: 518140
Current children cumulated CPU time (s) 49.8
Current children cumulated vsize (Kb) 518140

[startup+60.0037 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 10866
Raw data (/proc/10862/stat): 10862 (pb2sat) R 10861 10862 4060 0 -1 0 188123 0 0 0 5605 373 0 0 25 0 1 0 22555850 558690304 119575 4294967295 134512640 135987407 3221224560 3220686604 135499868 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10862/statm): 136399 119575 364 364 0 136035 0
[pid=10862] vsize: 545596
Current children cumulated CPU time (s) 59.78
Current children cumulated vsize (Kb) 545596

[startup+70.0045 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 10868
Raw data (/proc/10862/stat): 10862 (pb2sat) R 10861 10862 4060 0 -1 0 229207 0 0 0 6516 459 0 0 25 0 1 0 22555850 683143168 135860 4294967295 134512640 135987407 3221224560 3220685952 134931379 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10862/statm): 166783 135860 364 364 0 166419 0
[pid=10862] vsize: 667132
Current children cumulated CPU time (s) 69.75
Current children cumulated vsize (Kb) 667132

[startup+80.0052 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 10868
Raw data (/proc/10862/stat): 10862 (pb2sat) R 10861 10862 4060 0 -1 0 245323 0 0 0 7482 491 0 0 25 0 1 0 22555850 739946496 151760 4294967295 134512640 135987407 3221224560 3220686680 135487877 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10862/statm): 180651 151760 364 364 0 180287 0
[pid=10862] vsize: 722604
Current children cumulated CPU time (s) 79.73
Current children cumulated vsize (Kb) 722604

[startup+90.006 s]
Raw data (loadavg): 0.99 0.97 0.93 2/55 10868
Raw data (/proc/10862/stat): 10862 (pb2sat) R 10861 10862 4060 0 -1 0 264886 0 0 0 8443 528 0 0 25 0 1 0 22555850 769601536 170629 4294967295 134512640 135987407 3221224560 3220692796 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10862/statm): 187891 170629 364 364 0 187527 0
[pid=10862] vsize: 751564
Current children cumulated CPU time (s) 89.71
Current children cumulated vsize (Kb) 751564
One traced child (pid=10862) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 98.4992
CPU time (s): 98.2051
CPU user time (s): 92.5189
CPU system time (s): 5.68613
CPU usage (%): 99.7014
Max. virtual memory (cumulated for all children) (Kb): 751564

Verifier Data

ERROR: no interpretation found !