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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-wood1p.opb
MD5SUMebfeaf296769d76c3baeac85e245b267
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 20
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 1048575
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 52428800000000
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 64856524263290100
Number of bits of the biggest sum of numbers56
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables51880
Total number of constraints244
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints244
Minimum length of a constraint20
Maximum length of a constraint51840

Trace number 10328

Launcher Data

LAUNCH ON wulflinc29 THE 2005-09-23 17:51:06 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9072 boxname=wulflinc29 idbench=868 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  ebfeaf296769d76c3baeac85e245b267  /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-wood1p.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-wood1p.opb
IDLAUNCH: 9072
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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		: 451.077
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:        886228 kB
Buffers:         12360 kB
Cached:         118200 kB
SwapCached:          0 kB
Active:          82028 kB
Inactive:        51488 kB
HighTotal:      131008 kB
HighFree:        13104 kB
LowTotal:       903652 kB
LowFree:        873124 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9256 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:52:55 (client local time) WITH STATUS 1 IN 107.525 SECONDS
stats: 9072 7 107.525 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	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/10283/stat): 10283 (pb2sat) R 10282 10283 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22086623 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10283/statm): 373 2 364 364 0 9 0
[pid=10283] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-wood1p.opb

[startup+10.0014 s]
Raw data (loadavg): 0.93 0.93 0.91 2/55 10283
Raw data (/proc/10283/stat): 10283 (pb2sat) R 10282 10283 4005 0 -1 0 30736 0 0 0 929 66 0 0 25 0 1 0 22086623 100155392 19607 4294967295 134512640 135987407 3221224560 3218864672 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10283/statm): 24452 19607 364 364 0 24088 0
[pid=10283] vsize: 97808
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 97808

[startup+20.0022 s]
Raw data (loadavg): 0.94 0.93 0.91 2/55 10283
Raw data (/proc/10283/stat): 10283 (pb2sat) R 10282 10283 4005 0 -1 0 62550 0 0 0 1860 132 0 0 25 0 1 0 22086623 197873664 40193 4294967295 134512640 135987407 3221224560 3218811532 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10283/statm): 48309 40194 364 364 0 47945 0
[pid=10283] vsize: 193236
Current children cumulated CPU time (s) 19.92
Current children cumulated vsize (Kb) 193236

[startup+30.002 s]
Raw data (loadavg): 0.95 0.93 0.91 2/55 10283
Raw data (/proc/10283/stat): 10283 (pb2sat) R 10282 10283 4005 0 -1 0 105926 0 0 0 2767 221 0 0 25 0 1 0 22086623 331100160 61362 4294967295 134512640 135987407 3221224560 3218812540 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10283/statm): 80835 61362 364 364 0 80471 0
[pid=10283] vsize: 323340
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 323340

[startup+40.0017 s]
Raw data (loadavg): 0.95 0.93 0.91 2/55 10283
Raw data (/proc/10283/stat): 10283 (pb2sat) R 10282 10283 4005 0 -1 0 124718 0 0 0 3729 256 0 0 25 0 1 0 22086623 390201344 79929 4294967295 134512640 135987407 3221224560 3218802848 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10283/statm): 95264 79930 364 364 0 94900 0
[pid=10283] vsize: 381056
Current children cumulated CPU time (s) 39.85
Current children cumulated vsize (Kb) 381056

[startup+50.0025 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 10283
Raw data (/proc/10283/stat): 10283 (pb2sat) R 10282 10283 4005 0 -1 0 161889 0 0 0 4653 326 0 0 25 0 1 0 22086623 588906496 116209 4294967295 134512640 135987407 3221224560 3218812064 134856387 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10283/statm): 143776 116211 364 364 0 143412 0
[pid=10283] vsize: 575104
Current children cumulated CPU time (s) 49.79
Current children cumulated vsize (Kb) 575104

[startup+60.0023 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 10283
Raw data (/proc/10283/stat): 10283 (pb2sat) R 10282 10283 4005 0 -1 0 211066 0 0 0 5547 429 0 0 25 0 1 0 22086623 657068032 121873 4294967295 134512640 135987407 3221224560 3218843420 134636959 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10283/statm): 160417 121873 364 364 0 160053 0
[pid=10283] vsize: 641668
Current children cumulated CPU time (s) 59.76
Current children cumulated vsize (Kb) 641668

[startup+70.0031 s]
Raw data (loadavg): 0.97 0.94 0.91 2/55 10283
Raw data (/proc/10283/stat): 10283 (pb2sat) R 10282 10283 4005 0 -1 0 228175 0 0 0 6509 465 0 0 25 0 1 0 22086623 714563584 138775 4294967295 134512640 135987407 3221224560 3218896540 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10283/statm): 174454 138775 364 364 0 174090 0
[pid=10283] vsize: 697816
Current children cumulated CPU time (s) 69.74
Current children cumulated vsize (Kb) 697816

[startup+80.0039 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 10283
Raw data (/proc/10283/stat): 10283 (pb2sat) R 10282 10283 4005 0 -1 0 247677 0 0 0 7469 503 0 0 25 0 1 0 22086623 741466112 158046 4294967295 134512640 135987407 3221224560 3218854448 134878060 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10283/statm): 181022 158046 364 364 0 180658 0
[pid=10283] vsize: 724088
Current children cumulated CPU time (s) 79.72
Current children cumulated vsize (Kb) 724088

[startup+90.0037 s]
Raw data (loadavg): 0.98 0.94 0.91 3/55 10283
Raw data (/proc/10283/stat): 10283 (pb2sat) R 10282 10283 4005 0 -1 0 267355 0 0 0 8425 544 0 0 25 0 1 0 22086623 768790528 177488 4294967295 134512640 135987407 3221224560 3218817412 134866067 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10283/statm): 187693 177488 364 364 0 187329 0
[pid=10283] vsize: 750772
Current children cumulated CPU time (s) 89.69
Current children cumulated vsize (Kb) 750772

[startup+100.003 s]
Raw data (loadavg): 0.98 0.94 0.91 2/55 10283
Raw data (/proc/10283/stat): 10283 (pb2sat) R 10282 10283 4005 0 -1 0 281813 0 0 0 9393 575 0 0 25 0 1 0 22086623 839905280 191771 4294967295 134512640 135987407 3221224560 3220496784 135334311 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10283/statm): 205055 191771 364 364 0 204691 0
[pid=10283] vsize: 820220
Current children cumulated CPU time (s) 99.68
Current children cumulated vsize (Kb) 820220
One traced child (pid=10283) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 107.842
CPU time (s): 107.525
CPU user time (s): 101.372
CPU system time (s): 6.15306
CPU usage (%): 99.7056
Max. virtual memory (cumulated for all children) (Kb): 820220

Verifier Data

ERROR: no interpretation found !