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/MIPLIB/miplib2003/normalized-mps-v2-13-7-momentum2.opb
MD5SUMfdda3e6614261ac2a721bfd288fcd783
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 18541
Biggest coefficient in the objective function 81920000
Number of bits for the biggest coefficient in the objective function 27
Sum of the numbers in the objective function 454826456
Number of bits of the sum of numbers in the objective function 29
Biggest number in a constraint 128000000000000001700807049216
Number of bits of the biggest number in a constraint 97
Biggest sum of numbers in a constraint 467242513675650034629158633472
Number of bits of the biggest sum of numbers99
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark111.339
Number of variables19741
Total number of constraints27909
Number of constraints which are clauses10362
Number of constraints which are cardinality constraints (but not clauses)1921
Number of constraints which are nor clauses,nor cardinality constraints15626
Minimum length of a constraint1
Maximum length of a constraint730

Trace number 10418

Launcher Data

LAUNCH ON wulflinc21 THE 2005-09-23 18:14:39 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9168 boxname=wulflinc21 idbench=964 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  fdda3e6614261ac2a721bfd288fcd783  /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-momentum2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-momentum2.opb
IDLAUNCH: 9168
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.188
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		: 451.188
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:        861912 kB
Buffers:         14412 kB
Cached:         139676 kB
SwapCached:          0 kB
Active:         104432 kB
Inactive:        52600 kB
HighTotal:      131008 kB
HighFree:         3780 kB
LowTotal:       903652 kB
LowFree:        858132 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:            10004 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 18:16:22 (client local time) WITH STATUS 1 IN 100.749 SECONDS
stats: 9168 7 100.749 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/10785/stat): 10785 (pb2sat) R 10784 10785 4059 0 -1 0 18 0 0 0 0 0 0 0 20 0 1 0 22265031 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/10785/statm): 373 2 364 364 0 9 0
[pid=10785] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc21/normalized-mps-v2-13-7-momentum2.opb

[startup+10.0016 s]
Raw data (loadavg): 1.08 1.03 0.93 2/55 10785
Raw data (/proc/10785/stat): 10785 (pb2sat) R 10784 10785 4059 0 -1 0 9167 0 0 0 977 20 0 0 25 0 1 0 22265031 29720576 5108 4294967295 134512640 135987407 3221224560 3221211792 134866102 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10785/statm): 7256 5108 364 364 0 6892 0
[pid=10785] vsize: 29024
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 29024

[startup+20.0023 s]
Raw data (loadavg): 1.06 1.03 0.93 2/55 10785
Raw data (/proc/10785/stat): 10785 (pb2sat) R 10784 10785 4059 0 -1 0 37372 0 0 0 1911 84 0 0 25 0 1 0 22265031 112676864 21165 4294967295 134512640 135987407 3221224560 3221213264 134640036 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10785/statm): 27509 21165 364 364 0 27145 0
[pid=10785] vsize: 110036
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 110036

[startup+30.002 s]
Raw data (loadavg): 1.05 1.03 0.93 2/55 10785
Raw data (/proc/10785/stat): 10785 (pb2sat) R 10784 10785 4059 0 -1 0 71052 0 0 0 2832 161 0 0 25 0 1 0 22265031 222736384 38748 4294967295 134512640 135987407 3221224560 3221164208 134537491 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10785/statm): 54379 38748 364 364 0 54015 0
[pid=10785] vsize: 217516
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 217516

[startup+40.0027 s]
Raw data (loadavg): 1.05 1.02 0.93 2/55 10785
Raw data (/proc/10785/stat): 10785 (pb2sat) R 10784 10785 4059 0 -1 0 102764 0 0 0 3763 227 0 0 25 0 1 0 22265031 301703168 57827 4294967295 134512640 135987407 3221224560 3221161152 134802753 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10785/statm): 73658 57827 364 364 0 73294 0
[pid=10785] vsize: 294632
Current children cumulated CPU time (s) 39.9
Current children cumulated vsize (Kb) 294632

[startup+50.0033 s]
Raw data (loadavg): 1.04 1.02 0.93 2/55 10785
Raw data (/proc/10785/stat): 10785 (pb2sat) R 10784 10785 4059 0 -1 0 128377 0 0 0 4708 279 0 0 25 0 1 0 22265031 518606848 82641 4294967295 134512640 135987407 3221224560 3221162028 134855045 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10785/statm): 126613 82641 364 364 0 126249 0
[pid=10785] vsize: 506452
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (Kb) 506452

[startup+60.003 s]
Raw data (loadavg): 1.03 1.02 0.93 2/55 10785
Raw data (/proc/10785/stat): 10785 (pb2sat) R 10784 10785 4059 0 -1 0 165820 0 0 0 5630 353 0 0 25 0 1 0 22265031 502157312 99860 4294967295 134512640 135987407 3221224560 3221161048 134931169 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10785/statm): 122597 99860 364 364 0 122233 0
[pid=10785] vsize: 490388
Current children cumulated CPU time (s) 59.83
Current children cumulated vsize (Kb) 490388

[startup+70.0037 s]
Raw data (loadavg): 1.03 1.02 0.93 2/55 10785
Raw data (/proc/10785/stat): 10785 (pb2sat) R 10784 10785 4059 0 -1 0 207384 0 0 0 6538 443 0 0 25 0 1 0 22265031 627556352 116620 4294967295 134512640 135987407 3221224560 3221163164 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10785/statm): 153212 116620 364 364 0 152848 0
[pid=10785] vsize: 612848
Current children cumulated CPU time (s) 69.81
Current children cumulated vsize (Kb) 612848

[startup+80.0044 s]
Raw data (loadavg): 1.02 1.02 0.93 2/55 10785
Raw data (/proc/10785/stat): 10785 (pb2sat) R 10784 10785 4059 0 -1 0 224743 0 0 0 7498 480 0 0 25 0 1 0 22265031 689205248 132874 4294967295 134512640 135987407 3221224560 3221163340 135499903 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10785/statm): 168263 132874 364 364 0 167899 0
[pid=10785] vsize: 673052
Current children cumulated CPU time (s) 79.78
Current children cumulated vsize (Kb) 673052

[startup+90.0051 s]
Raw data (loadavg): 1.02 1.02 0.93 2/55 10785
Raw data (/proc/10785/stat): 10785 (pb2sat) R 10784 10785 4059 0 -1 0 244403 0 0 0 8456 521 0 0 25 0 1 0 22265031 717594624 152272 4294967295 134512640 135987407 3221224560 3221163328 134854964 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10785/statm): 175194 152272 364 364 0 174830 0
[pid=10785] vsize: 700776
Current children cumulated CPU time (s) 89.77
Current children cumulated vsize (Kb) 700776

[startup+100.005 s]
Raw data (loadavg): 1.02 1.02 0.93 2/55 10785
Raw data (/proc/10785/stat): 10785 (pb2sat) R 10784 10785 4059 0 -1 0 253627 0 0 0 9423 552 0 0 25 0 1 0 22265031 413896704 100550 4294967295 134512640 135987407 3221224560 3221223388 134892722 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/10785/statm): 101049 100550 364 364 0 100685 0
[pid=10785] vsize: 404196
Current children cumulated CPU time (s) 99.75
Current children cumulated vsize (Kb) 404196
One traced child (pid=10785) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 100.996
CPU time (s): 100.749
CPU user time (s): 95.0106
CPU system time (s): 5.73813
CPU usage (%): 99.7548
Max. virtual memory (cumulated for all children) (Kb): 700776

Verifier Data

ERROR: no interpretation found !