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/miplib3/normalized-mps-v2-13-7-p0282.opb
MD5SUM1a8deb577df7e72871b7e1004c098336
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 benchmark50.1794
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 10488

Launcher Data

LAUNCH ON wulflinc22 THE 2005-09-23 18:36:54 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9241 boxname=wulflinc22 idbench=1037 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1a8deb577df7e72871b7e1004c098336  /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-13-7-p0282.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-13-7-p0282.opb
IDLAUNCH: 9241
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 450.985
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		: 450.985
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:        917024 kB
Buffers:         12736 kB
Cached:          87972 kB
SwapCached:          0 kB
Active:          46772 kB
Inactive:        56816 kB
HighTotal:      131008 kB
HighFree:        42756 kB
LowTotal:       903652 kB
LowFree:        874268 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8464 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 18:38:46 (client local time) WITH STATUS 1 IN 111.156 SECONDS
stats: 9241 7 111.156 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/9784/stat): 9784 (pb2sat) R 9783 9784 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22398321 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/9784/statm): 373 2 364 364 0 9 0
[pid=9784] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-13-7-p0282.opb

[startup+10.0018 s]
Raw data (loadavg): 0.86 0.94 0.90 2/55 9784
Raw data (/proc/9784/stat): 9784 (pb2sat) R 9783 9784 4060 0 -1 0 31410 0 0 0 924 71 0 0 25 0 1 0 22398321 97300480 20213 4294967295 134512640 135987407 3221224560 3221163520 134876615 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9784/statm): 23755 20213 364 364 0 23391 0
[pid=9784] vsize: 95020
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 95020

[startup+20.0026 s]
Raw data (loadavg): 0.88 0.94 0.90 2/55 9784
Raw data (/proc/9784/stat): 9784 (pb2sat) R 9783 9784 4060 0 -1 0 62446 0 0 0 1857 135 0 0 25 0 1 0 22398321 193531904 40034 4294967295 134512640 135987407 3221224560 3221168876 135499903 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9784/statm): 47249 40034 364 364 0 46885 0
[pid=9784] vsize: 188996
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 188996

[startup+30.0023 s]
Raw data (loadavg): 0.90 0.94 0.90 2/55 9784
Raw data (/proc/9784/stat): 9784 (pb2sat) R 9783 9784 4060 0 -1 0 105135 0 0 0 2764 225 0 0 25 0 1 0 22398321 325947392 60529 4294967295 134512640 135987407 3221224560 3221190576 134537371 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9784/statm): 79577 60529 364 364 0 79213 0
[pid=9784] vsize: 318308
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 318308

[startup+40.003 s]
Raw data (loadavg): 0.91 0.94 0.90 2/55 9784
Raw data (/proc/9784/stat): 9784 (pb2sat) R 9783 9784 4060 0 -1 0 123244 0 0 0 3728 260 0 0 25 0 1 0 22398321 383967232 78421 4294967295 134512640 135987407 3221224560 3221170404 135477853 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9784/statm): 93742 78421 364 364 0 93378 0
[pid=9784] vsize: 374968
Current children cumulated CPU time (s) 39.88
Current children cumulated vsize (Kb) 374968

[startup+50.0037 s]
Raw data (loadavg): 0.92 0.94 0.90 2/55 9784
Raw data (/proc/9784/stat): 9784 (pb2sat) R 9783 9784 4060 0 -1 0 148294 0 0 0 4672 314 0 0 25 0 1 0 22398321 561721344 103011 4294967295 134512640 135987407 3221224560 3221199504 134856587 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9784/statm): 137139 103011 364 364 0 136775 0
[pid=9784] vsize: 548556
Current children cumulated CPU time (s) 49.86
Current children cumulated vsize (Kb) 548556

[startup+60.0044 s]
Raw data (loadavg): 0.94 0.95 0.90 2/55 9784
Raw data (/proc/9784/stat): 9784 (pb2sat) R 9783 9784 4060 0 -1 0 207425 0 0 0 5539 443 0 0 25 0 1 0 22398321 646365184 118228 4294967295 134512640 135987407 3221224560 3221203168 134865981 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9784/statm): 157804 118228 364 364 0 157440 0
[pid=9784] vsize: 631216
Current children cumulated CPU time (s) 59.82
Current children cumulated vsize (Kb) 631216

[startup+70.0051 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 9784
Raw data (/proc/9784/stat): 9784 (pb2sat) R 9783 9784 4060 0 -1 0 223815 0 0 0 6505 476 0 0 25 0 1 0 22398321 702767104 134427 4294967295 134512640 135987407 3221224560 3221183032 135488013 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9784/statm): 171574 134427 364 364 0 171210 0
[pid=9784] vsize: 686296
Current children cumulated CPU time (s) 69.81
Current children cumulated vsize (Kb) 686296

[startup+80.0059 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 9784
Raw data (/proc/9784/stat): 9784 (pb2sat) R 9783 9784 4060 0 -1 0 242157 0 0 0 7466 513 0 0 25 0 1 0 22398321 726962176 152550 4294967295 134512640 135987407 3221224560 3221175480 134637789 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9784/statm): 177481 152550 364 364 0 177117 0
[pid=9784] vsize: 709924
Current children cumulated CPU time (s) 79.79
Current children cumulated vsize (Kb) 709924

[startup+90.0066 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 9784
Raw data (/proc/9784/stat): 9784 (pb2sat) R 9783 9784 4060 0 -1 0 260569 0 0 0 8426 552 0 0 25 0 1 0 22398321 751161344 170739 4294967295 134512640 135987407 3221224560 3221202340 135479892 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9784/statm): 183389 170739 364 364 0 183025 0
[pid=9784] vsize: 733556
Current children cumulated CPU time (s) 89.78
Current children cumulated vsize (Kb) 733556

[startup+100.006 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 9784
Raw data (/proc/9784/stat): 9784 (pb2sat) R 9783 9784 4060 0 -1 0 274967 0 0 0 9392 583 0 0 25 0 1 0 22398321 820146176 184964 4294967295 134512640 135987407 3221224560 3221185040 134866059 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9784/statm): 200231 184964 364 364 0 199867 0
[pid=9784] vsize: 800924
Current children cumulated CPU time (s) 99.75
Current children cumulated vsize (Kb) 800924

[startup+110.007 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 9784
Raw data (/proc/9784/stat): 9784 (pb2sat) R 9783 9784 4060 0 -1 0 282717 0 0 0 10361 614 0 0 25 0 1 0 22398321 470392832 114370 4294967295 134512640 135987407 3221224560 3221223408 134884010 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/9784/statm): 114842 114370 364 364 0 114478 0
[pid=9784] vsize: 459368
Current children cumulated CPU time (s) 109.75
Current children cumulated vsize (Kb) 459368
One traced child (pid=9784) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 111.408
CPU time (s): 111.156
CPU user time (s): 104.763
CPU system time (s): 6.39303
CPU usage (%): 99.7737
Max. virtual memory (cumulated for all children) (Kb): 800924

Verifier Data

ERROR: no interpretation found !