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/miplib/normalized-mps-v2-20-10-enigma.opb
MD5SUM69bc407892007f468f206122d0d17aba
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved YES
Number of terms in the objective function 9
Biggest coefficient in the objective function 9
Number of bits for the biggest coefficient in the objective function 4
Sum of the numbers in the objective function 45
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 900207
Number of bits of the biggest number in a constraint 20
Biggest sum of numbers in a constraint 9508275
Number of bits of the biggest sum of numbers24
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark2.17967
Number of variables100
Total number of constraints121
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)120
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint1
Maximum length of a constraint90

Trace number 9962

Launcher Data

LAUNCH ON wulflinc11 THE 2005-09-23 16:17:03 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8712 boxname=wulflinc11 idbench=508 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  69bc407892007f468f206122d0d17aba  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-enigma.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-enigma.opb
IDLAUNCH: 8712
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.045
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		: 451.045
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:        910352 kB
Buffers:          8892 kB
Cached:          90524 kB
SwapCached:          0 kB
Active:          55956 kB
Inactive:        53028 kB
HighTotal:      131008 kB
HighFree:        38220 kB
LowTotal:       903652 kB
LowFree:        872132 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9768 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:18:52 (client local time) WITH STATUS 1 IN 108.325 SECONDS
stats: 8712 7 108.325 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/9489/stat): 9489 (pb2sat) R 9488 9489 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21561432 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9489/statm): 373 2 364 364 0 9 0
[pid=9489] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-enigma.opb

[startup+10.0014 s]
Raw data (loadavg): 0.87 0.93 0.90 2/55 9489
Raw data (/proc/9489/stat): 9489 (pb2sat) R 9488 9489 4060 0 -1 0 31616 0 0 0 927 68 0 0 25 0 1 0 21561432 98828288 20475 4294967295 134512640 135987407 3221224560 3221203832 134802691 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9489/statm): 24128 20475 364 364 0 23764 0
[pid=9489] vsize: 96512
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 96512

[startup+20.0022 s]
Raw data (loadavg): 0.89 0.94 0.90 2/55 9489
Raw data (/proc/9489/stat): 9489 (pb2sat) R 9488 9489 4060 0 -1 0 62501 0 0 0 1860 131 0 0 25 0 1 0 21561432 194928640 40143 4294967295 134512640 135987407 3221224560 3221212496 134878060 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9489/statm): 47590 40143 364 364 0 47226 0
[pid=9489] vsize: 190360
Current children cumulated CPU time (s) 19.91
Current children cumulated vsize (Kb) 190360

[startup+30.003 s]
Raw data (loadavg): 0.90 0.94 0.90 2/55 9489
Raw data (/proc/9489/stat): 9489 (pb2sat) R 9488 9489 4060 0 -1 0 105613 0 0 0 2776 212 0 0 25 0 1 0 21561432 328200192 61050 4294967295 134512640 135987407 3221224560 3221211808 134556925 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9489/statm): 80127 61050 364 364 0 79763 0
[pid=9489] vsize: 320508
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 320508

[startup+40.0038 s]
Raw data (loadavg): 0.92 0.94 0.90 2/55 9489
Raw data (/proc/9489/stat): 9489 (pb2sat) R 9488 9489 4060 0 -1 0 123978 0 0 0 3738 248 0 0 25 0 1 0 21561432 387461120 79192 4294967295 134512640 135987407 3221224560 3221208700 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9489/statm): 94595 79192 364 364 0 94231 0
[pid=9489] vsize: 378380
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 378380

[startup+50.0046 s]
Raw data (loadavg): 0.93 0.94 0.90 2/55 9489
Raw data (/proc/9489/stat): 9489 (pb2sat) R 9488 9489 4060 0 -1 0 159305 0 0 0 4666 316 0 0 25 0 1 0 21561432 584048640 113677 4294967295 134512640 135987407 3221224560 3221210432 134856487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9489/statm): 142590 113677 364 364 0 142226 0
[pid=9489] vsize: 570360
Current children cumulated CPU time (s) 49.82
Current children cumulated vsize (Kb) 570360

[startup+60.0044 s]
Raw data (loadavg): 0.94 0.94 0.90 2/55 9489
Raw data (/proc/9489/stat): 9489 (pb2sat) R 9488 9489 4060 0 -1 0 204353 0 0 0 5565 415 0 0 25 0 1 0 21561432 643616768 115219 4294967295 134512640 135987407 3221224560 3221200912 134558655 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9489/statm): 157133 115219 364 364 0 156769 0
[pid=9489] vsize: 628532
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 628532

[startup+70.0052 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 9489
Raw data (/proc/9489/stat): 9489 (pb2sat) R 9488 9489 4060 0 -1 0 215725 0 0 0 6541 439 0 0 25 0 1 0 21561432 677597184 126387 4294967295 134512640 135987407 3221224560 3221205872 134640432 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9489/statm): 165429 126387 364 364 0 165065 0
[pid=9489] vsize: 661716
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 661716

[startup+80.006 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 9489
Raw data (/proc/9489/stat): 9489 (pb2sat) R 9488 9489 4060 0 -1 0 228186 0 0 0 7521 460 0 0 25 0 1 0 21561432 677597184 138621 4294967295 134512640 135987407 3221224560 3221206016 134892994 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9489/statm): 165429 138621 364 364 0 165065 0
[pid=9489] vsize: 661716
Current children cumulated CPU time (s) 79.81
Current children cumulated vsize (Kb) 661716

[startup+90.0067 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 9489
Raw data (/proc/9489/stat): 9489 (pb2sat) R 9488 9489 4060 0 -1 0 241845 0 0 0 8496 485 0 0 25 0 1 0 21561432 682192896 152049 4294967295 134512640 135987407 3221224560 3221210176 134877988 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9489/statm): 166551 152049 364 364 0 166187 0
[pid=9489] vsize: 666204
Current children cumulated CPU time (s) 89.81
Current children cumulated vsize (Kb) 666204

[startup+100.007 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 9489
Raw data (/proc/9489/stat): 9489 (pb2sat) R 9488 9489 4060 0 -1 0 253152 0 0 0 9475 505 0 0 25 0 1 0 21561432 738762752 163174 4294967295 134512640 135987407 3221224560 3221210236 134636992 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9489/statm): 180362 163174 364 364 0 179998 0
[pid=9489] vsize: 721448
Current children cumulated CPU time (s) 99.8
Current children cumulated vsize (Kb) 721448
One traced child (pid=9489) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 108.537
CPU time (s): 108.325
CPU user time (s): 102.83
CPU system time (s): 5.49416
CPU usage (%): 99.8046
Max. virtual memory (cumulated for all children) (Kb): 721448

Verifier Data

ERROR: no interpretation found !