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-air05.opb
MD5SUMa0fff131fa124ee4d61d9b3bf266a4ba
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 38469
Optimality of the best value was proved NO
Number of terms in the objective function 7195
Biggest coefficient in the objective function 2679
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 3908448
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 2679
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 3908448
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1195.14
Number of variables7195
Total number of constraints7621
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)7621
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint404

Trace number 10002

Launcher Data

LAUNCH ON wulflinc23 THE 2005-09-23 16:27:36 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8762 boxname=wulflinc23 idbench=558 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a0fff131fa124ee4d61d9b3bf266a4ba  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-air05.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-air05.opb
IDLAUNCH: 8762
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.185
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		: 451.185
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:        917700 kB
Buffers:         14236 kB
Cached:          84160 kB
SwapCached:          0 kB
Active:          60672 kB
Inactive:        40672 kB
HighTotal:      131008 kB
HighFree:        42616 kB
LowTotal:       903652 kB
LowFree:        875084 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              52 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10052 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:29:30 (client local time) WITH STATUS 1 IN 113.104 SECONDS
stats: 8762 7 113.104 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 45244
c big objective detected
c trying from 0 to 511

	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/8068/stat): 8068 (pb2sat) R 8067 8068 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21619941 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8068/statm): 373 2 364 364 0 9 0
[pid=8068] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-air05.opb

[startup+10.002 s]
Raw data (loadavg): 0.91 0.94 0.95 2/55 8068
Raw data (/proc/8068/stat): 8068 (pb2sat) R 8067 8068 4060 0 -1 0 14315 0 0 0 961 34 0 0 25 0 1 0 21619941 44748800 8567 4294967295 134512640 135987407 3221224560 3221223248 134811839 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8068/statm): 10925 8567 364 364 0 10561 0
[pid=8068] vsize: 43700
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 43700

[startup+20.0026 s]
Raw data (loadavg): 0.92 0.94 0.95 2/55 8068
Raw data (/proc/8068/stat): 8068 (pb2sat) R 8067 8068 4060 0 -1 0 29262 0 0 0 1914 71 0 0 25 0 1 0 21619941 96141312 17914 4294967295 134512640 135987407 3221224560 3220680576 134640450 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8068/statm): 23472 17914 364 364 0 23108 0
[pid=8068] vsize: 93888
Current children cumulated CPU time (s) 19.85
Current children cumulated vsize (Kb) 93888

[startup+30.0033 s]
Raw data (loadavg): 0.93 0.94 0.95 2/55 8068
Raw data (/proc/8068/stat): 8068 (pb2sat) R 8067 8068 4060 0 -1 0 59370 0 0 0 2843 138 0 0 25 0 1 0 21619941 191967232 36787 4294967295 134512640 135987407 3221224560 3221016572 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8068/statm): 46867 36787 364 364 0 46503 0
[pid=8068] vsize: 187468
Current children cumulated CPU time (s) 29.81
Current children cumulated vsize (Kb) 187468

[startup+40.0029 s]
Raw data (loadavg): 0.94 0.94 0.95 2/55 8068
Raw data (/proc/8068/stat): 8068 (pb2sat) R 8067 8068 4060 0 -1 0 90267 0 0 0 3779 199 0 0 25 0 1 0 21619941 275673088 57742 4294967295 134512640 135987407 3221224560 3220620252 135484783 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8068/statm): 67303 57742 364 364 0 66939 0
[pid=8068] vsize: 269212
Current children cumulated CPU time (s) 39.78
Current children cumulated vsize (Kb) 269212

[startup+50.0036 s]
Raw data (loadavg): 0.95 0.94 0.95 2/55 8068
Raw data (/proc/8068/stat): 8068 (pb2sat) R 8067 8068 4060 0 -1 0 118450 0 0 0 4714 263 0 0 25 0 1 0 21619941 382808064 73420 4294967295 134512640 135987407 3221224560 3221202688 135477294 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8068/statm): 93459 73420 364 364 0 93095 0
[pid=8068] vsize: 373836
Current children cumulated CPU time (s) 49.77
Current children cumulated vsize (Kb) 373836

[startup+60.0042 s]
Raw data (loadavg): 0.96 0.94 0.95 2/55 8068
Raw data (/proc/8068/stat): 8068 (pb2sat) R 8067 8068 4060 0 -1 0 161283 0 0 0 5624 347 0 0 25 0 1 0 21619941 592596992 115058 4294967295 134512640 135987407 3221224560 3220323344 134533897 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8068/statm): 144677 115058 364 364 0 144313 0
[pid=8068] vsize: 578708
Current children cumulated CPU time (s) 59.71
Current children cumulated vsize (Kb) 578708

[startup+70.0048 s]
Raw data (loadavg): 0.96 0.94 0.95 2/55 8068
Raw data (/proc/8068/stat): 8068 (pb2sat) R 8067 8068 4060 0 -1 0 178634 0 0 0 6580 390 0 0 25 0 1 0 21619941 548057088 113746 4294967295 134512640 135987407 3221224560 3220792400 134878078 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8068/statm): 133803 113746 364 364 0 133439 0
[pid=8068] vsize: 535212
Current children cumulated CPU time (s) 69.7
Current children cumulated vsize (Kb) 535212

[startup+80.0055 s]
Raw data (loadavg): 0.97 0.95 0.95 2/55 8068
Raw data (/proc/8068/stat): 8068 (pb2sat) R 8067 8068 4060 0 -1 0 218766 0 0 0 7490 478 0 0 25 0 1 0 21619941 671428608 129089 4294967295 134512640 135987407 3221224560 3220689340 134669201 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8068/statm): 163923 129089 364 364 0 163559 0
[pid=8068] vsize: 655692
Current children cumulated CPU time (s) 79.68
Current children cumulated vsize (Kb) 655692

[startup+90.0051 s]
Raw data (loadavg): 0.97 0.95 0.95 2/55 8068
Raw data (/proc/8068/stat): 8068 (pb2sat) R 8067 8068 4060 0 -1 0 233727 0 0 0 8454 510 0 0 25 0 1 0 21619941 727015424 143847 4294967295 134512640 135987407 3221224560 3220964672 134855001 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8068/statm): 177494 143847 364 364 0 177130 0
[pid=8068] vsize: 709976
Current children cumulated CPU time (s) 89.64
Current children cumulated vsize (Kb) 709976

[startup+100.005 s]
Raw data (loadavg): 0.98 0.95 0.95 2/55 8068
Raw data (/proc/8068/stat): 8068 (pb2sat) R 8067 8068 4060 0 -1 0 251772 0 0 0 9410 552 0 0 25 0 1 0 21619941 753778688 161647 4294967295 134512640 135987407 3221224560 3218879488 134866100 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8068/statm): 184028 161647 364 364 0 183664 0
[pid=8068] vsize: 736112
Current children cumulated CPU time (s) 99.62
Current children cumulated vsize (Kb) 736112

[startup+110.005 s]
Raw data (loadavg): 0.98 0.95 0.95 2/55 8068
Raw data (/proc/8068/stat): 8068 (pb2sat) R 8067 8068 4060 0 -1 0 263152 0 0 0 10386 574 0 0 25 0 1 0 21619941 774291456 172863 4294967295 134512640 135987407 3221224560 3221223240 135477671 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8068/statm): 189036 172863 364 364 0 188672 0
[pid=8068] vsize: 756144
Current children cumulated CPU time (s) 109.6
Current children cumulated vsize (Kb) 756144
One traced child (pid=8068) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 113.5
CPU time (s): 113.104
CPU user time (s): 107.01
CPU system time (s): 6.09407
CPU usage (%): 99.6513
Max. virtual memory (cumulated for all children) (Kb): 756144

Verifier Data

ERROR: no interpretation found !