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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-stocfor1.opb
MD5SUM7d2af3956088e44d3dd8bd225cfe1230
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 810
Biggest coefficient in the objective function 159153234378752000
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function 3935910692489746509
Number of bits of the sum of numbers in the objective function 62
Biggest number in a constraint 159153234378752000
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint 3935910692489746509
Number of bits of the biggest sum of numbers62
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.00285
Number of variables3330
Total number of constraints117
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 constraints117
Minimum length of a constraint30
Maximum length of a constraint240

Trace number 9930

Launcher Data

LAUNCH ON wulflinc13 THE 2005-09-23 16:13:03 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8685 boxname=wulflinc13 idbench=481 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  7d2af3956088e44d3dd8bd225cfe1230  /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-stocfor1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-stocfor1.opb
IDLAUNCH: 8685
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.180
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		: 451.180
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:        924916 kB
Buffers:         13992 kB
Cached:          77332 kB
SwapCached:          0 kB
Active:          44384 kB
Inactive:        49896 kB
HighTotal:      131008 kB
HighFree:        50008 kB
LowTotal:       903652 kB
LowFree:        874908 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             9968 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:14:49 (client local time) WITH STATUS 1 IN 104.971 SECONDS
stats: 8685 7 104.971 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/7722/stat): 7722 (pb2sat) R 7721 7722 4060 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 21536010 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/7722/statm): 373 2 364 364 0 9 0
[pid=7722] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-stocfor1.opb

[startup+10.0011 s]
Raw data (loadavg): 0.85 0.92 0.94 2/55 7722
Raw data (/proc/7722/stat): 7722 (pb2sat) R 7721 7722 4060 0 -1 0 31607 0 0 0 929 66 0 0 25 0 1 0 21536010 98713600 20457 4294967295 134512640 135987407 3221224560 3221155708 135487876 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7722/statm): 24100 20458 364 364 0 23736 0
[pid=7722] vsize: 96400
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 96400

[startup+20.0018 s]
Raw data (loadavg): 0.87 0.92 0.94 2/55 7722
Raw data (/proc/7722/stat): 7722 (pb2sat) R 7721 7722 4060 0 -1 0 62816 0 0 0 1863 130 0 0 25 0 1 0 21536010 195530752 40441 4294967295 134512640 135987407 3221224560 3221161424 134878060 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7722/statm): 47737 40443 364 364 0 47373 0
[pid=7722] vsize: 190948
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 190948

[startup+30.0014 s]
Raw data (loadavg): 0.89 0.92 0.94 2/55 7722
Raw data (/proc/7722/stat): 7722 (pb2sat) R 7721 7722 4060 0 -1 0 106116 0 0 0 2778 211 0 0 25 0 1 0 21536010 329453568 61533 4294967295 134512640 135987407 3221224560 3221154320 134856387 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7722/statm): 80433 61533 364 364 0 80069 0
[pid=7722] vsize: 321732
Current children cumulated CPU time (s) 29.89
Current children cumulated vsize (Kb) 321732

[startup+40.0021 s]
Raw data (loadavg): 0.91 0.93 0.94 2/55 7722
Raw data (/proc/7722/stat): 7722 (pb2sat) R 7721 7722 4060 0 -1 0 124608 0 0 0 3737 250 0 0 25 0 1 0 21536010 388014080 79794 4294967295 134512640 135987407 3221224560 3221154176 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7722/statm): 94730 79794 364 364 0 94366 0
[pid=7722] vsize: 378920
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 378920

[startup+50.0027 s]
Raw data (loadavg): 0.92 0.93 0.94 2/55 7722
Raw data (/proc/7722/stat): 7722 (pb2sat) R 7721 7722 4060 0 -1 0 169205 0 0 0 4649 333 0 0 25 0 1 0 21536010 600715264 123197 4294967295 134512640 135987407 3221224560 3221154716 134533884 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7722/statm): 146659 123197 364 364 0 146295 0
[pid=7722] vsize: 586636
Current children cumulated CPU time (s) 49.82
Current children cumulated vsize (Kb) 586636

[startup+60.0024 s]
Raw data (loadavg): 0.93 0.93 0.94 2/55 7722
Raw data (/proc/7722/stat): 7722 (pb2sat) R 7721 7722 4060 0 -1 0 210485 0 0 0 5557 423 0 0 25 0 1 0 21536010 655048704 121268 4294967295 134512640 135987407 3221224560 3221160140 134637002 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7722/statm): 159924 121269 364 364 0 159560 0
[pid=7722] vsize: 639696
Current children cumulated CPU time (s) 59.8
Current children cumulated vsize (Kb) 639696

[startup+70.0031 s]
Raw data (loadavg): 0.94 0.93 0.94 2/55 7722
Raw data (/proc/7722/stat): 7722 (pb2sat) R 7721 7722 4060 0 -1 0 227167 0 0 0 6521 458 0 0 25 0 1 0 21536010 711176192 137741 4294967295 134512640 135987407 3221224560 3221154460 135482121 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7722/statm): 173627 137741 364 364 0 173263 0
[pid=7722] vsize: 694508
Current children cumulated CPU time (s) 69.79
Current children cumulated vsize (Kb) 694508

[startup+80.0037 s]
Raw data (loadavg): 0.95 0.93 0.94 2/55 7722
Raw data (/proc/7722/stat): 7722 (pb2sat) R 7721 7722 4060 0 -1 0 246551 0 0 0 7480 497 0 0 25 0 1 0 21536010 737533952 156887 4294967295 134512640 135987407 3221224560 3221153696 134878092 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7722/statm): 180062 156887 364 364 0 179698 0
[pid=7722] vsize: 720248
Current children cumulated CPU time (s) 79.77
Current children cumulated vsize (Kb) 720248

[startup+90.0044 s]
Raw data (loadavg): 0.96 0.93 0.94 2/55 7722
Raw data (/proc/7722/stat): 7722 (pb2sat) R 7721 7722 4060 0 -1 0 265966 0 0 0 8439 535 0 0 25 0 1 0 21536010 763621376 176059 4294967295 134512640 135987407 3221224560 3221154268 135499901 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7722/statm): 186431 176060 364 364 0 186067 0
[pid=7722] vsize: 745724
Current children cumulated CPU time (s) 89.74
Current children cumulated vsize (Kb) 745724

[startup+100.004 s]
Raw data (loadavg): 0.96 0.94 0.94 2/55 7722
Raw data (/proc/7722/stat): 7722 (pb2sat) R 7721 7722 4060 0 -1 0 277002 0 0 0 9414 559 0 0 25 0 1 0 21536010 831246336 186959 4294967295 134512640 135987407 3221224560 3221223012 135478497 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7722/statm): 202941 186959 364 364 0 202577 0
[pid=7722] vsize: 811764
Current children cumulated CPU time (s) 99.73
Current children cumulated vsize (Kb) 811764
One traced child (pid=7722) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 105.236
CPU time (s): 104.971
CPU user time (s): 98.993
CPU system time (s): 5.97809
CPU usage (%): 99.7486
Max. virtual memory (cumulated for all children) (Kb): 811764

Verifier Data

ERROR: no interpretation found !