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-p0282.opb
MD5SUMa733e9fa1e4e3ac90baf85249f7c3e9a
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 258411
Optimality of the best value was proved YES
Number of terms in the objective function 282
Biggest coefficient in the objective function 160646
Number of bits for the biggest coefficient in the objective function 18
Sum of the numbers in the objective function 1302615
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 160646
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 1302615
Number of bits of the biggest sum of numbers21
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark50.7373
Number of variables282
Total number of constraints523
Number of constraints which are clauses177
Number of constraints which are cardinality constraints (but not clauses)282
Number of constraints which are nor clauses,nor cardinality constraints64
Minimum length of a constraint1
Maximum length of a constraint57

Trace number 9980

Launcher Data

LAUNCH ON wulflinc11 THE 2005-09-23 16:20:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8735 boxname=wulflinc11 idbench=531 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a733e9fa1e4e3ac90baf85249f7c3e9a  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-p0282.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-p0282.opb
IDLAUNCH: 8735
/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:        910300 kB
Buffers:          8956 kB
Cached:          90596 kB
SwapCached:          0 kB
Active:          56008 kB
Inactive:        53092 kB
HighTotal:      131008 kB
HighFree:        38136 kB
LowTotal:       903652 kB
LowFree:        872164 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9676 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:22:43 (client local time) WITH STATUS 1 IN 109.911 SECONDS
stats: 8735 7 109.911 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 746317
c small objective detected

	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/9711/stat): 9711 (pb2sat) R 9710 9711 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21584373 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9711/statm): 373 2 364 364 0 9 0
[pid=9711] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-p0282.opb

[startup+10.0022 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 9711
Raw data (/proc/9711/stat): 9711 (pb2sat) R 9710 9711 4060 0 -1 0 31705 0 0 0 926 68 0 0 25 0 1 0 21584373 97570816 20504 4294967295 134512640 135987407 3221224560 3221156160 134856632 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9711/statm): 23821 20504 364 364 0 23457 0
[pid=9711] vsize: 95284
Current children cumulated CPU time (s) 9.94
Current children cumulated vsize (Kb) 95284

[startup+20.003 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 9711
Raw data (/proc/9711/stat): 9711 (pb2sat) R 9710 9711 4060 0 -1 0 63049 0 0 0 1860 131 0 0 25 0 1 0 21584373 194342912 40630 4294967295 134512640 135987407 3221224560 3221186700 135499901 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9711/statm): 47447 40630 364 364 0 47083 0
[pid=9711] vsize: 189788
Current children cumulated CPU time (s) 19.91
Current children cumulated vsize (Kb) 189788

[startup+30.0028 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 9711
Raw data (/proc/9711/stat): 9711 (pb2sat) R 9710 9711 4060 0 -1 0 106047 0 0 0 2770 216 0 0 25 0 1 0 21584373 327163904 61430 4294967295 134512640 135987407 3221224560 3221188272 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9711/statm): 79874 61430 364 364 0 79510 0
[pid=9711] vsize: 319496
Current children cumulated CPU time (s) 29.86
Current children cumulated vsize (Kb) 319496

[startup+40.0036 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 9711
Raw data (/proc/9711/stat): 9711 (pb2sat) R 9710 9711 4060 0 -1 0 124443 0 0 0 3728 256 0 0 25 0 1 0 21584373 385589248 79606 4294967295 134512640 135987407 3221224560 3221196528 134878052 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9711/statm): 94138 79606 364 364 0 93774 0
[pid=9711] vsize: 376552
Current children cumulated CPU time (s) 39.84
Current children cumulated vsize (Kb) 376552

[startup+50.0044 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 9711
Raw data (/proc/9711/stat): 9711 (pb2sat) R 9710 9711 4060 0 -1 0 156926 0 0 0 4664 317 0 0 25 0 1 0 21584373 575913984 111356 4294967295 134512640 135987407 3221224560 3221199468 135500012 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9711/statm): 140604 111356 364 364 0 140240 0
[pid=9711] vsize: 562416
Current children cumulated CPU time (s) 49.81
Current children cumulated vsize (Kb) 562416

[startup+60.0052 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 9711
Raw data (/proc/9711/stat): 9711 (pb2sat) R 9710 9711 4060 0 -1 0 209248 0 0 0 5549 428 0 0 25 0 1 0 21584373 649203712 120031 4294967295 134512640 135987407 3221224560 3221187228 134635478 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9711/statm): 158497 120031 364 364 0 158133 0
[pid=9711] vsize: 633988
Current children cumulated CPU time (s) 59.77
Current children cumulated vsize (Kb) 633988

[startup+70.0059 s]
Raw data (loadavg): 0.99 0.95 0.91 2/55 9711
Raw data (/proc/9711/stat): 9711 (pb2sat) R 9710 9711 4060 0 -1 0 225752 0 0 0 6514 462 0 0 25 0 1 0 21584373 705335296 136341 4294967295 134512640 135987407 3221224560 3221202528 134856505 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9711/statm): 172201 136341 364 364 0 171837 0
[pid=9711] vsize: 688804
Current children cumulated CPU time (s) 69.76
Current children cumulated vsize (Kb) 688804

[startup+80.0057 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 9711
Raw data (/proc/9711/stat): 9711 (pb2sat) R 9710 9711 4060 0 -1 0 244056 0 0 0 7477 497 0 0 25 0 1 0 21584373 729395200 154426 4294967295 134512640 135987407 3221224560 3221196816 134856702 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9711/statm): 178075 154426 364 364 0 177711 0
[pid=9711] vsize: 712300
Current children cumulated CPU time (s) 79.74
Current children cumulated vsize (Kb) 712300

[startup+90.0055 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 9711
Raw data (/proc/9711/stat): 9711 (pb2sat) R 9710 9711 4060 0 -1 0 262131 0 0 0 8440 532 0 0 25 0 1 0 21584373 803520512 172283 4294967295 134512640 135987407 3221224560 3221200464 134877628 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9711/statm): 196172 172283 364 364 0 195808 0
[pid=9711] vsize: 784688
Current children cumulated CPU time (s) 89.72
Current children cumulated vsize (Kb) 784688

[startup+100.005 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 9711
Raw data (/proc/9711/stat): 9711 (pb2sat) R 9710 9711 4060 0 -1 0 276968 0 0 0 9408 562 0 0 25 0 1 0 21584373 822714368 186941 4294967295 134512640 135987407 3221224560 3221179788 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9711/statm): 200858 186942 364 364 0 200494 0
[pid=9711] vsize: 803432
Current children cumulated CPU time (s) 99.7
Current children cumulated vsize (Kb) 803432

[startup+110.006 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 9711
Raw data (/proc/9711/stat): 9711 (pb2sat) R 9710 9711 4060 0 -1 0 282717 0 0 0 10377 596 0 0 25 0 1 0 21584373 327782400 79553 4294967295 134512640 135987407 3221224560 3221223416 135544177 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9711/statm): 80025 79553 364 364 0 79661 0
[pid=9711] vsize: 320100
Current children cumulated CPU time (s) 109.73
Current children cumulated vsize (Kb) 320100
One traced child (pid=9711) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 110.213
CPU time (s): 109.911
CPU user time (s): 103.77
CPU system time (s): 6.14107
CPU usage (%): 99.7263
Max. virtual memory (cumulated for all children) (Kb): 803432

Verifier Data

ERROR: no interpretation found !