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-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 benchmark1195.17
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 10386

Launcher Data

LAUNCH ON wulflinc17 THE 2005-09-23 18:02:34 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9146 boxname=wulflinc17 idbench=942 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a0fff131fa124ee4d61d9b3bf266a4ba  /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-13-7-air05.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-13-7-air05.opb
IDLAUNCH: 9146
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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		: 451.161
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:        928240 kB
Buffers:         16448 kB
Cached:          71476 kB
SwapCached:          0 kB
Active:          45180 kB
Inactive:        45648 kB
HighTotal:      131008 kB
HighFree:        55300 kB
LowTotal:       903652 kB
LowFree:        872940 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10052 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 18:04:27 (client local time) WITH STATUS 1 IN 112.4 SECONDS
stats: 9146 7 112.4 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/9764/stat): 9764 (pb2sat) R 9763 9764 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22195543 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9764/statm): 373 2 364 364 0 9 0
[pid=9764] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-13-7-air05.opb

[startup+10.0019 s]
Raw data (loadavg): 0.96 1.00 0.94 2/55 9764
Raw data (/proc/9764/stat): 9764 (pb2sat) R 9763 9764 4060 0 -1 0 14315 0 0 0 959 36 0 0 25 0 1 0 22195543 44748800 8567 4294967295 134512640 135987407 3221224560 3221223248 134811775 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9764/statm): 10925 8567 364 364 0 10561 0
[pid=9764] vsize: 43700
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 43700

[startup+20.0026 s]
Raw data (loadavg): 0.97 1.00 0.94 2/55 9764
Raw data (/proc/9764/stat): 9764 (pb2sat) R 9763 9764 4060 0 -1 0 29642 0 0 0 1912 72 0 0 25 0 1 0 22195543 96952320 18289 4294967295 134512640 135987407 3221224560 3219557600 134878017 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9764/statm): 23670 18289 364 364 0 23306 0
[pid=9764] vsize: 94680
Current children cumulated CPU time (s) 19.84
Current children cumulated vsize (Kb) 94680

[startup+30.0032 s]
Raw data (loadavg): 0.97 1.00 0.94 2/55 9764
Raw data (/proc/9764/stat): 9764 (pb2sat) R 9763 9764 4060 0 -1 0 59731 0 0 0 2840 141 0 0 25 0 1 0 22195543 192643072 37142 4294967295 134512640 135987407 3221224560 3218918672 134887291 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9764/statm): 47032 37142 364 364 0 46668 0
[pid=9764] vsize: 188128
Current children cumulated CPU time (s) 29.81
Current children cumulated vsize (Kb) 188128

[startup+40.0038 s]
Raw data (loadavg): 0.98 1.00 0.94 2/55 9764
Raw data (/proc/9764/stat): 9764 (pb2sat) R 9763 9764 4060 0 -1 0 90702 0 0 0 3770 208 0 0 25 0 1 0 22195543 276348928 58172 4294967295 134512640 135987407 3221224560 3221204368 135477294 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9764/statm): 67468 58172 364 364 0 67104 0
[pid=9764] vsize: 269872
Current children cumulated CPU time (s) 39.78
Current children cumulated vsize (Kb) 269872

[startup+50.0044 s]
Raw data (loadavg): 0.98 1.00 0.94 2/55 9764
Raw data (/proc/9764/stat): 9764 (pb2sat) R 9763 9764 4060 0 -1 0 118928 0 0 0 4704 272 0 0 25 0 1 0 22195543 383619072 73891 4294967295 134512640 135987407 3221224560 3220574480 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9764/statm): 93657 73891 364 364 0 93293 0
[pid=9764] vsize: 374628
Current children cumulated CPU time (s) 49.76
Current children cumulated vsize (Kb) 374628

[startup+60.005 s]
Raw data (loadavg): 0.98 1.00 0.94 2/55 9764
Raw data (/proc/9764/stat): 9764 (pb2sat) R 9763 9764 4060 0 -1 0 162256 0 0 0 5613 359 0 0 25 0 1 0 22195543 529682432 98622 4294967295 134512640 135987407 3221224560 3220323660 135500012 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9764/statm): 129317 98622 364 364 0 128953 0
[pid=9764] vsize: 517268
Current children cumulated CPU time (s) 59.72
Current children cumulated vsize (Kb) 517268

[startup+70.0056 s]
Raw data (loadavg): 0.98 1.00 0.94 2/55 9764
Raw data (/proc/9764/stat): 9764 (pb2sat) R 9763 9764 4060 0 -1 0 179236 0 0 0 6570 399 0 0 25 0 1 0 22195543 548868096 114339 4294967295 134512640 135987407 3221224560 3220749424 134639034 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9764/statm): 134001 114339 364 364 0 133637 0
[pid=9764] vsize: 536004
Current children cumulated CPU time (s) 69.69
Current children cumulated vsize (Kb) 536004

[startup+80.0052 s]
Raw data (loadavg): 0.99 1.00 0.94 2/55 9764
Raw data (/proc/9764/stat): 9764 (pb2sat) R 9763 9764 4060 0 -1 0 219418 0 0 0 7479 489 0 0 25 0 1 0 22195543 672374784 129731 4294967295 134512640 135987407 3221224560 3219707548 134669188 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9764/statm): 164154 129731 364 364 0 163790 0
[pid=9764] vsize: 656616
Current children cumulated CPU time (s) 79.68
Current children cumulated vsize (Kb) 656616

[startup+90.0058 s]
Raw data (loadavg): 0.99 1.00 0.94 2/55 9764
Raw data (/proc/9764/stat): 9764 (pb2sat) R 9763 9764 4060 0 -1 0 234553 0 0 0 8443 523 0 0 25 0 1 0 22195543 728367104 144660 4294967295 134512640 135987407 3221224560 3219006560 134878063 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9764/statm): 177824 144660 364 364 0 177460 0
[pid=9764] vsize: 711296
Current children cumulated CPU time (s) 89.66
Current children cumulated vsize (Kb) 711296

[startup+100.005 s]
Raw data (loadavg): 0.99 1.00 0.94 2/55 9764
Raw data (/proc/9764/stat): 9764 (pb2sat) R 9763 9764 4060 0 -1 0 252673 0 0 0 9403 561 0 0 25 0 1 0 22195543 754995200 162536 4294967295 134512640 135987407 3221224560 3219605420 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9764/statm): 184325 162536 364 364 0 183961 0
[pid=9764] vsize: 737300
Current children cumulated CPU time (s) 99.64
Current children cumulated vsize (Kb) 737300

[startup+110.006 s]
Raw data (loadavg): 0.99 1.00 0.94 2/55 9764
Raw data (/proc/9764/stat): 9764 (pb2sat) R 9763 9764 4060 0 -1 0 263152 0 0 0 10379 585 0 0 25 0 1 0 22195543 774291456 172863 4294967295 134512640 135987407 3221224560 3221223240 135477167 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9764/statm): 189036 172863 364 364 0 188672 0
[pid=9764] vsize: 756144
Current children cumulated CPU time (s) 109.64
Current children cumulated vsize (Kb) 756144
One traced child (pid=9764) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 112.768
CPU time (s): 112.4
CPU user time (s): 106.2
CPU system time (s): 6.20006
CPU usage (%): 99.6737
Max. virtual memory (cumulated for all children) (Kb): 756144

Verifier Data

ERROR: no interpretation found !