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-p0291.opb
MD5SUM1d9168a9335e29df835d07b0bdf2adea
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 10447498
Optimality of the best value was proved YES
Number of terms in the objective function 289
Biggest coefficient in the objective function 80000000
Number of bits for the biggest coefficient in the objective function 27
Sum of the numbers in the objective function 686518451
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 80000000
Number of bits of the biggest number in a constraint 27
Biggest sum of numbers in a constraint 686518451
Number of bits of the biggest sum of numbers30
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark0.412936
Number of variables291
Total number of constraints543
Number of constraints which are clauses189
Number of constraints which are cardinality constraints (but not clauses)295
Number of constraints which are nor clauses,nor cardinality constraints59
Minimum length of a constraint1
Maximum length of a constraint53

Trace number 9981

Launcher Data

LAUNCH ON wulflinc19 THE 2005-09-23 16:20:58 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8736 boxname=wulflinc19 idbench=532 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1d9168a9335e29df835d07b0bdf2adea  /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-p0291.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-p0291.opb
IDLAUNCH: 8736
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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		: 451.169
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:        924776 kB
Buffers:         15552 kB
Cached:          74956 kB
SwapCached:          0 kB
Active:          45756 kB
Inactive:        47660 kB
HighTotal:      131008 kB
HighFree:        52612 kB
LowTotal:       903652 kB
LowFree:        872164 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            11004 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:22:51 (client local time) WITH STATUS 1 IN 111.977 SECONDS
stats: 8736 7 111.977 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 563772543
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/8574/stat): 8574 (pb2sat) R 8573 8574 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21583646 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8574/statm): 373 2 364 364 0 9 0
[pid=8574] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-p0291.opb

[startup+10.0013 s]
Raw data (loadavg): 0.92 0.94 0.90 2/55 8574
Raw data (/proc/8574/stat): 8574 (pb2sat) R 8573 8574 4060 0 -1 0 31202 0 0 0 927 67 0 0 25 0 1 0 21583646 98938880 20061 4294967295 134512640 135987407 3221224560 3221132608 134893296 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8574/statm): 24155 20061 364 364 0 23791 0
[pid=8574] vsize: 96620
Current children cumulated CPU time (s) 9.94
Current children cumulated vsize (Kb) 96620

[startup+20.0021 s]
Raw data (loadavg): 0.93 0.94 0.91 2/55 8574
Raw data (/proc/8574/stat): 8574 (pb2sat) R 8573 8574 4060 0 -1 0 61762 0 0 0 1862 130 0 0 25 0 1 0 21583646 195485696 39411 4294967295 134512640 135987407 3221224560 3221133724 134677714 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8574/statm): 47726 39411 364 364 0 47362 0
[pid=8574] vsize: 190904
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 190904

[startup+30.0029 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 8574
Raw data (/proc/8574/stat): 8574 (pb2sat) R 8573 8574 4060 0 -1 0 103644 0 0 0 2774 214 0 0 25 0 1 0 21583646 326434816 59104 4294967295 134512640 135987407 3221224560 3221129212 135484792 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8574/statm): 79696 59104 364 364 0 79332 0
[pid=8574] vsize: 318784
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 318784

[startup+40.0037 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 8574
Raw data (/proc/8574/stat): 8574 (pb2sat) R 8573 8574 4060 0 -1 0 121604 0 0 0 3735 251 0 0 25 0 1 0 21583646 385822720 76852 4294967295 134512640 135987407 3221224560 3221132808 134637837 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8574/statm): 94195 76852 364 364 0 93831 0
[pid=8574] vsize: 376780
Current children cumulated CPU time (s) 39.86
Current children cumulated vsize (Kb) 376780

[startup+50.0045 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 8574
Raw data (/proc/8574/stat): 8574 (pb2sat) R 8573 8574 4060 0 -1 0 142090 0 0 0 4698 286 0 0 25 0 1 0 21583646 556892160 97045 4294967295 134512640 135987407 3221224560 3221128236 135500012 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8574/statm): 135960 97045 364 364 0 135596 0
[pid=8574] vsize: 543840
Current children cumulated CPU time (s) 49.84
Current children cumulated vsize (Kb) 543840

[startup+60.0043 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 8574
Raw data (/proc/8574/stat): 8574 (pb2sat) R 8573 8574 4060 0 -1 0 205174 0 0 0 5569 410 0 0 25 0 1 0 21583646 648044544 116046 4294967295 134512640 135987407 3221224560 3221133596 135499901 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8574/statm): 158214 116046 364 364 0 157850 0
[pid=8574] vsize: 632856
Current children cumulated CPU time (s) 59.79
Current children cumulated vsize (Kb) 632856

[startup+70.0051 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 8574
Raw data (/proc/8574/stat): 8574 (pb2sat) R 8573 8574 4060 0 -1 0 221081 0 0 0 6539 439 0 0 25 0 1 0 21583646 703496192 131761 4294967295 134512640 135987407 3221224560 3221142192 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8574/statm): 171752 131761 364 364 0 171388 0
[pid=8574] vsize: 687008
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 687008

[startup+80.0059 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 8574
Raw data (/proc/8574/stat): 8574 (pb2sat) R 8573 8574 4060 0 -1 0 239741 0 0 0 7501 475 0 0 25 0 1 0 21583646 731004928 150205 4294967295 134512640 135987407 3221224560 3221140884 134560215 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8574/statm): 178468 150205 364 364 0 178104 0
[pid=8574] vsize: 713872
Current children cumulated CPU time (s) 79.76
Current children cumulated vsize (Kb) 713872

[startup+90.0067 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 8574
Raw data (/proc/8574/stat): 8574 (pb2sat) R 8573 8574 4060 0 -1 0 258429 0 0 0 8465 509 0 0 25 0 1 0 21583646 756998144 168667 4294967295 134512640 135987407 3221224560 3221149404 135499901 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8574/statm): 184814 168667 364 364 0 184450 0
[pid=8574] vsize: 739256
Current children cumulated CPU time (s) 89.74
Current children cumulated vsize (Kb) 739256

[startup+100.007 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 8574
Raw data (/proc/8574/stat): 8574 (pb2sat) R 8573 8574 4060 0 -1 0 272303 0 0 0 9439 534 0 0 25 0 1 0 21583646 826003456 182376 4294967295 134512640 135987407 3221224560 3221133260 135499903 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8574/statm): 201661 182376 364 364 0 201297 0
[pid=8574] vsize: 806644
Current children cumulated CPU time (s) 99.73
Current children cumulated vsize (Kb) 806644

[startup+110.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 8574
Raw data (/proc/8574/stat): 8574 (pb2sat) R 8573 8574 4060 0 -1 0 281641 0 0 0 10402 569 0 0 25 0 1 0 21583646 479363072 116479 4294967295 134512640 135987407 3221224560 3221223224 135477274 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8574/statm): 117032 116479 364 364 0 116668 0
[pid=8574] vsize: 468128
Current children cumulated CPU time (s) 109.71
Current children cumulated vsize (Kb) 468128
One traced child (pid=8574) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 112.261
CPU time (s): 111.977
CPU user time (s): 106.031
CPU system time (s): 5.9461
CPU usage (%): 99.7473
Max. virtual memory (cumulated for all children) (Kb): 806644

Verifier Data

ERROR: no interpretation found !