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).
  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

Namenormalized-opb/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-scagr25.opb
MD5SUMbe61473a6f4c61e5d13e35f131b73ac6
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 14250
Biggest coefficient in the objective function 35540854374400
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 4668575759312850
Number of bits of the sum of numbers in the objective function 53
Biggest number in a constraint 35540854374400
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 4668575759312850
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.131979
Number of variables15000
Total number of constraints471
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 constraints471
Minimum length of a constraint30
Maximum length of a constraint300

Trace number 28817

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-05-25 04:18:36 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=11181 boxname=wulflinc1 idbench=861 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  be61473a6f4c61e5d13e35f131b73ac6  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-scagr25.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-scagr25.opb
IDLAUNCH: 11181
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        832952 kB
Buffers:         13240 kB
Cached:         158704 kB
SwapCached:       3972 kB
Active:          42280 kB
Inactive:       136588 kB
HighTotal:      131008 kB
HighFree:         3500 kB
LowTotal:       903652 kB
LowFree:        829452 kB
SwapTotal:     2097136 kB
SwapFree:      2092844 kB
Dirty:              36 kB
Writeback:           0 kB
Mapped:           6956 kB
Slab:            17160 kB
Committed_AS:    92716 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-25 04:19:08 (client local time) WITH STATUS 0 IN 31.9831 SECONDS
stats: 11181 7 31.9831 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c ERROR Parsing file!!!
c ERROR parsing line: -20*COL00002_bit_10 -40*COL00002_bit_9 -80*COL00002_bit_8 -160*COL00002_bit_7 -320*COL00002_bit_6 -640*COL00002_bit_5 -1280*COL00002_bit_4 -2560*COL00002_bit_3 -5120*COL00002_bit_2 -10240*COL00002_bit_1 -20480*COL00002_bit0 -40960*COL00002_bit1 -81920*COL00002_bit2 -163840*COL00002_bit3 -327680*COL00002_bit4 -655360*COL00002_bit5 -1310720*COL00002_bit6 -2621440*COL00002_bit7 -5242880*COL00002_bit8 -10485760*COL00002_bit9 -20971520*COL00002_bit10 -41943040*COL00002_bit11 -83886080*COL00002_bit12 -167772160*COL00002_bit13 -335544320*COL00002_bit14 -671088640*COL00002_bit15 -1342177280*COL00002_bit16 -2684354560*COL00002_bit17 -5368709120*COL00002_bit18 -10737418240*COL00002_bit19 -20*COL00003_bit_10 -40*COL00003_bit_9 -80*COL00003_bit_8 -160*COL00003_bit_7 -320*COL00003_bit_6 -640*COL00003_bit_5 -1280*COL00003_bit_4 -2560*COL00003_bit_3 -5120*COL00003_bit_2 -10240*COL00003_bit_1 -20480*COL00003_bit0 -40960*COL00003_bit1 -81920*COL00003_bit2 -163840*COL00003_bit3 -327680*COL00003_bit4 -655360*COL00003_bit5 -1310720*COL00003_bit6 -2621440*COL00003_bit7 -5242880*COL00003_bit8 -10485760*COL00003_bit9 -20971520*COL00003_bit10 -41943040*COL00003_bit11 -83886080*COL00003_bit12 -167772160*COL00003_bit13 -335544320*COL00003_bit14 -671088640*COL00003_bit15 -1342177280*COL00003_bit16 -2684354560*COL00003_bit17 -5368709120*COL00003_bit18 -10737418240*COL00003_bit19 -85*COL00005_bit_10 -170*COL00005_bit_9 -340*COL00005_bit_8 -680*COL00005_bit_7 -1360*COL00005_bit_6 -2720*COL00005_bit_5 -5440*COL00005_bit_4 -10880*COL00005_bit_3 -21760*COL00005_bit_2 -43520*COL00005_bit_1 -87040*COL00005_bit0 -174080*COL00005_bit1 -348160*COL00005_bit2 -696320*COL00005_bit3 -1392640*COL00005_bit4 -2785280*COL00005_bit5 -5570560*COL00005_bit6 -11141120*COL00005_bit7 -22282240*COL00005_bit8 -44564480*COL00005_bit9 -89128960*COL00005_bit10 -178257920*COL00005_bit11 -356515840*COL00005_bit12 -713031680*COL00005_bit13 -1426063360*COL00005_bit14 -2852126720*COL00005_bit15 -5704253440*COL00005_bit16 -11408506880*COL00005_bit17 -22817013760*COL00005_bit18 -45634027520*COL00005_bit19 -85*COL00006_bit_10 -170*COL00006_bit_9 -340*COL00006_bit_8 -680*COL00006_bit_7 -1360*COL00006_bit_6 -2720*COL00006_bit_5 -5440*COL00006_bit_4 -10880*COL00006_bit_3 -21760*COL00006_bit_2 -43520*COL00006_bit_1 -87040*COL00006_bit0 -174080*COL00006_bit1 -348160*COL00006_bit2 -696320*COL00006_bit3 -1392640*COL00006_bit4 -2785280*COL00006_bit5 -5570560*COL00006_bit6 -11141120*COL00006_bit7 -22282240*COL00006_bit8 -44564480*COL00006_bit9 -89128960*COL00006_bit10 -178257920*COL00006_bit11 -356515840*COL00006_bit12 -713031680*COL00006_bit13 -1426063360*COL00006_bit14 -2852126720*COL00006_bit15 -5704253440*COL00006_bit16 -11408506880*COL00006_bit17 -22817013760*COL00006_bit18 -45634027520*COL00006_bit19 +75*COL00008_bit_10 +150*COL00008_bit_9 +300*COL00008_bit_8 +600*COL00008_bit_7 +1200*COL00008_bit_6 +2400*COL00008_bit_5 +4800*COL00008_bit_4 +9600*COL00008_bit_3 +19200*COL00008_bit_2 +38400*COL00008_bit_1 +76800*COL00008_bit0 +153600*COL00008_bit1 +307200*COL00008_bit2 +614400*COL00008_bit3 +1228800*COL00008_bit4 +2457600*COL00008_bit5 +4915200*COL00008_bit6 +9830400*COL00008_bit7 +19660800*COL00008_bit8 +39321600*COL00008_bit9 +78643200*COL00008_bit10 +157286400*COL00008_bit11 +314572800*COL00008_bit12 +629145600*COL00008_bit13 +1258291200*COL00008_bit14 +2516582400*COL00008_bit15 +5033164800*COL00008_bit16 +10066329600*COL00008_bit17 +20132659200*COL00008_bit18 +40265318400*COL00008_bit19 +50*COL00011_bit_10 +100*COL00011_bit_9 +200*COL00011_bit_8 +400*COL00011_bit_7 +800*COL00011_bit_6 +1600*COL00011_bit_5 +3200*COL00011_bit_4 +6400*COL00011_bit_3 +12800*COL00011_bit_2 +25600*COL00011_bit_1 +51200*COL00011_bit0 +102400*COL00011_bit1 +204800*COL00011_bit2 +409600*COL00011_bit3 +819200*COL00011_bit4 +1638400*COL00011_bit5 +3276800*COL00011_bit6 +6553600*COL00011_bit7 +13107200*COL00011_bit8 +26214400*COL00011_bit9 +52428800*COL00011_bit10 +104857600*COL00011_bit11 +209715200*COL00011_bit12 +419430400*COL00011_bit13 +838860800*COL00011_bit14 +1677721600*COL00011_bit15 +3355443200*COL00011_bit16 +6710886400*COL00011_bit17 +13421772800*COL00011_bit18 +26843545600*COL00011_bit19 = +158359552;
c Cannot parse input file name: /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-scagr25.opb
s UNKNOWN
c Exit Code: 0
c Total time: 31.961 s
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Raw data (loadavg): 0.62 0.89 0.93 1/55 17414
Raw data (stat): 17414 (runsolver) D 17413 8378 8377 0 -1 64 4 0 0 0 0 0 0 0 18 0 1 0 720863297 1052672 99 4294967295 134512640 135381576 3221224496 3221219712 135158418 0 2147483391 7 90112 3225161850 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0005 s]
Raw data (loadavg): 0.68 0.89 0.93 2/55 17414
Raw data (stat): 17414 (bsolo_lpr) R 17413 8378 8377 0 -1 0 2204 0 0 0 987 6 0 0 25 0 1 0 720863297 21901312 2128 4294967295 134512640 134714508 3221224592 3221222820 1077414401 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 5347 2128 1111 63 0 5284 0
vsize: 21388
[startup+20.0063 s]
Raw data (loadavg): 0.73 0.90 0.93 2/55 17414
Raw data (stat): 17414 (bsolo_lpr) R 17413 8378 8377 0 -1 0 4200 0 0 0 1985 9 0 0 25 0 1 0 720863297 29982720 4124 4294967295 134512640 134714508 3221224592 3221222820 1077414433 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 7320 4124 1111 63 0 7257 0
vsize: 29280
[startup+30.0071 s]
Raw data (loadavg): 0.77 0.90 0.93 2/55 17414
Raw data (stat): 17414 (bsolo_lpr) R 17413 8378 8377 0 -1 0 6865 0 0 0 2979 15 0 0 25 0 1 0 720863297 41009152 6789 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10012 6789 1111 63 0 9949 0
vsize: 40048
[startup+32.0665 s]
Raw data (loadavg): 0.79 0.90 0.93 1/54 17414
Raw data (stat): 17414 (bsolo_lpr) R 17413 8378 8377 0 -1 0 6865 0 0 0 2979 15 0 0 25 0 1 0 720863297 41009152 6789 4294967295 134512640 134714508 3221224592 3221223248 134527932 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 10012 6789 1111 63 0 9949 0
vsize: 0

Child status: 0
Real time (s): 32.0662
CPU time (s): 31.9831
CPU user time (s): 31.8052
CPU system time (s): 0.177972
CPU usage (%): 99.741
Max. virtual memory (Kb): 40048
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####