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/miplib3/normalized-mps-v2-20-10-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 benchmark50.5843
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 10100

Launcher Data

LAUNCH ON wulflinc18 THE 2005-09-23 16:59:09 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8857 boxname=wulflinc18 idbench=653 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1a8deb577df7e72871b7e1004c098336  /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-p0282.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-p0282.opb
IDLAUNCH: 8857
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.061
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.061
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:        931600 kB
Buffers:         14928 kB
Cached:          68644 kB
SwapCached:          0 kB
Active:          45248 kB
Inactive:        41212 kB
HighTotal:      131008 kB
HighFree:        58044 kB
LowTotal:       903652 kB
LowFree:        873556 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10960 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:01:00 (client local time) WITH STATUS 1 IN 110.345 SECONDS
stats: 8857 7 110.345 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/7679/stat): 7679 (pb2sat) R 7678 7679 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21814304 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/7679/statm): 373 2 364 364 0 9 0
[pid=7679] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-20-10-p0282.opb

[startup+10.0015 s]
Raw data (loadavg): 0.93 0.95 0.96 2/55 7679
Raw data (/proc/7679/stat): 7679 (pb2sat) R 7678 7679 4060 0 -1 0 31656 0 0 0 926 68 0 0 25 0 1 0 21814304 97570816 20456 4294967295 134512640 135987407 3221224560 3221175272 134876579 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7679/statm): 23821 20456 364 364 0 23457 0
[pid=7679] vsize: 95284
Current children cumulated CPU time (s) 9.94
Current children cumulated vsize (Kb) 95284

[startup+20.0024 s]
Raw data (loadavg): 0.94 0.96 0.96 2/55 7679
Raw data (/proc/7679/stat): 7679 (pb2sat) R 7678 7679 4060 0 -1 0 62967 0 0 0 1856 135 0 0 25 0 1 0 21814304 194207744 40548 4294967295 134512640 135987407 3221224560 3221186064 134856387 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7679/statm): 47414 40548 364 364 0 47050 0
[pid=7679] vsize: 189656
Current children cumulated CPU time (s) 19.91
Current children cumulated vsize (Kb) 189656

[startup+30.0033 s]
Raw data (loadavg): 0.95 0.96 0.96 2/55 7679
Raw data (/proc/7679/stat): 7679 (pb2sat) R 7678 7679 4060 0 -1 0 105943 0 0 0 2767 221 0 0 25 0 1 0 21814304 327028736 61327 4294967295 134512640 135987407 3221224560 3221163328 134640450 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7679/statm): 79841 61327 364 364 0 79477 0
[pid=7679] vsize: 319364
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 319364

[startup+40.0043 s]
Raw data (loadavg): 0.95 0.96 0.96 2/55 7679
Raw data (/proc/7679/stat): 7679 (pb2sat) R 7678 7679 4060 0 -1 0 124346 0 0 0 3726 260 0 0 25 0 1 0 21814304 385454080 79510 4294967295 134512640 135987407 3221224560 3221195468 135480425 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7679/statm): 94105 79511 364 364 0 93741 0
[pid=7679] vsize: 376420
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 376420

[startup+50.0051 s]
Raw data (loadavg): 0.96 0.96 0.96 2/55 7679
Raw data (/proc/7679/stat): 7679 (pb2sat) R 7678 7679 4060 0 -1 0 156365 0 0 0 4660 322 0 0 25 0 1 0 21814304 574967808 110814 4294967295 134512640 135987407 3221224560 3221199504 134856594 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7679/statm): 140373 110817 364 364 0 140009 0
[pid=7679] vsize: 561492
Current children cumulated CPU time (s) 49.82
Current children cumulated vsize (Kb) 561492

[startup+60.0051 s]
Raw data (loadavg): 0.97 0.96 0.96 2/55 7734
Raw data (/proc/7679/stat): 7679 (pb2sat) R 7678 7679 4060 0 -1 0 208781 0 0 0 5538 440 0 0 25 0 1 0 21814304 648527872 119569 4294967295 134512640 135987407 3221224560 3221189424 134856587 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7679/statm): 158332 119569 364 364 0 157968 0
[pid=7679] vsize: 633328
Current children cumulated CPU time (s) 59.78
Current children cumulated vsize (Kb) 633328

[startup+70.006 s]
Raw data (loadavg): 0.97 0.96 0.96 2/55 7734
Raw data (/proc/7679/stat): 7679 (pb2sat) R 7678 7679 4060 0 -1 0 225102 0 0 0 6504 474 0 0 25 0 1 0 21814304 704524288 135700 4294967295 134512640 135987407 3221224560 3221187792 134878060 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7679/statm): 172003 135700 364 364 0 171639 0
[pid=7679] vsize: 688012
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 688012

[startup+80.0059 s]
Raw data (loadavg): 0.98 0.96 0.96 2/55 7734
Raw data (/proc/7679/stat): 7679 (pb2sat) R 7678 7679 4060 0 -1 0 243408 0 0 0 7465 511 0 0 25 0 1 0 21814304 728584192 153786 4294967295 134512640 135987407 3221224560 3221192176 134862195 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7679/statm): 177877 153787 364 364 0 177513 0
[pid=7679] vsize: 711508
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 711508

[startup+90.0069 s]
Raw data (loadavg): 0.98 0.96 0.96 2/55 7734
Raw data (/proc/7679/stat): 7679 (pb2sat) R 7678 7679 4060 0 -1 0 261826 0 0 0 8427 547 0 0 25 0 1 0 21814304 752783360 171981 4294967295 134512640 135987407 3221224560 3221197008 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7679/statm): 183785 171981 364 364 0 183421 0
[pid=7679] vsize: 735140
Current children cumulated CPU time (s) 89.74
Current children cumulated vsize (Kb) 735140

[startup+100.007 s]
Raw data (loadavg): 0.98 0.96 0.96 2/55 7734
Raw data (/proc/7679/stat): 7679 (pb2sat) R 7678 7679 4060 0 -1 0 276243 0 0 0 9397 575 0 0 25 0 1 0 21814304 821768192 186225 4294967295 134512640 135987407 3221224560 3221186176 134640497 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7679/statm): 200627 186225 364 364 0 200263 0
[pid=7679] vsize: 802508
Current children cumulated CPU time (s) 99.72
Current children cumulated vsize (Kb) 802508

[startup+110.007 s]
Raw data (loadavg): 0.98 0.96 0.96 2/55 7734
Raw data (/proc/7679/stat): 7679 (pb2sat) R 7678 7679 4060 0 -1 0 282717 0 0 0 10366 605 0 0 25 0 1 0 21814304 470392832 114370 4294967295 134512640 135987407 3221224560 3221223384 134893009 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7679/statm): 114842 114370 364 364 0 114478 0
[pid=7679] vsize: 459368
Current children cumulated CPU time (s) 109.71
Current children cumulated vsize (Kb) 459368
One traced child (pid=7679) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 110.637
CPU time (s): 110.345
CPU user time (s): 104.034
CPU system time (s): 6.31104
CPU usage (%): 99.7364
Max. virtual memory (cumulated for all children) (Kb): 802508

Verifier Data

ERROR: no interpretation found !