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/MIPLIB/miplib2003/normalized-mps-v2-20-10-mas74.opb
MD5SUM6a0bff14a7f6c8e613cddf35e20a182f
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 240
Biggest coefficient in the objective function 1934281311383406679529881600000
Number of bits for the biggest coefficient in the objective function 101
Sum of the numbers in the objective function 3868562622766813359059763200000
Number of bits of the sum of numbers in the objective function 102
Biggest number in a constraint 1208925819614629174706176000000000
Number of bits of the biggest number in a constraint 110
Biggest sum of numbers in a constraint 2417851639229258349412352000000000
Number of bits of the biggest sum of numbers111
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1217.78
Number of variables240
Total number of constraints164
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)151
Number of constraints which are nor clauses,nor cardinality constraints13
Minimum length of a constraint1
Maximum length of a constraint239

Trace number 26500

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-05-24 16:10:19 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=12664 boxname=wulflinc3 idbench=975 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  6a0bff14a7f6c8e613cddf35e20a182f  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-mas74.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-mas74.opb
IDLAUNCH: 12664
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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	: 2
cpu MHz		: 451.190
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:        928396 kB
Buffers:         34320 kB
Cached:          49756 kB
SwapCached:        108 kB
Active:          53044 kB
Inactive:        33952 kB
HighTotal:      131008 kB
HighFree:        76972 kB
LowTotal:       903652 kB
LowFree:        851424 kB
SwapTotal:     2097136 kB
SwapFree:      2096992 kB
Dirty:            1484 kB
Writeback:           0 kB
Mapped:           6908 kB
Slab:            13744 kB
Committed_AS:    71796 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-24 16:10:19 (client local time) WITH STATUS 0 IN 0.101984 SECONDS
stats: 12664 7 0.101984 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c ERROR Parsing file!!!
c ERROR parsing line: -1*x151_bit_10 -2*x151_bit_9 -4*x151_bit_8 -8*x151_bit_7 -16*x151_bit_6 -32*x151_bit_5 -64*x151_bit_4 -128*x151_bit_3 -256*x151_bit_2 -512*x151_bit_1 -1024*x151_bit0 -2048*x151_bit1 -4096*x151_bit2 -8192*x151_bit3 -16384*x151_bit4 -32768*x151_bit5 -65536*x151_bit6 -131072*x151_bit7 -262144*x151_bit8 -524288*x151_bit9 -1048576*x151_bit10 -2097152*x151_bit11 -4194304*x151_bit12 -8388608*x151_bit13 -16777216*x151_bit14 -33554432*x151_bit15 -67108864*x151_bit16 -134217728*x151_bit17 -268435456*x151_bit18 -536870912*x151_bit19 -1073741824*x151_bit20 -2147483648*x151_bit21 -4294967296*x151_bit22 -8589934592*x151_bit23 -17179869184*x151_bit24 -34359738368*x151_bit25 -68719476736*x151_bit26 -137438953472*x151_bit27 -274877906944*x151_bit28 -549755813888*x151_bit29 -1099511627776*x151_bit30 -2199023255552*x151_bit31 -4398046511104*x151_bit32 -8796093022208*x151_bit33 -17592186044416*x151_bit34 -35184372088832*x151_bit35 -70368744177664*x151_bit36 -140737488355328*x151_bit37 -281474976710656*x151_bit38 -562949953421312*x151_bit39 -1125899906842624*x151_bit40 -2251799813685248*x151_bit41 -4503599627370496*x151_bit42 -9007199254740992*x151_bit43 -18014398509481984*x151_bit44 -36028797018963968*x151_bit45 -72057594037927936*x151_bit46 -144115188075855872*x151_bit47 -288230376151711744*x151_bit48 -576460752303423488*x151_bit49 -1152921504606846976*x151_bit50 -2305843009213693952*x151_bit51 -4611686018427387904*x151_bit52 -9223372036854775808*x151_bit53 -18446744073709551616*x151_bit54 -36893488147419103232*x151_bit55 -73786976294838206464*x151_bit56 -147573952589676412928*x151_bit57 -295147905179352825856*x151_bit58 -590295810358705651712*x151_bit59 -1180591620717411303424*x151_bit60 -2361183241434822606848*x151_bit61 -4722366482869645213696*x151_bit62 -9444732965739290427392*x151_bit63 -18889465931478580854784*x151_bit64 -37778931862957161709568*x151_bit65 -75557863725914323419136*x151_bit66 -151115727451828646838272*x151_bit67 -302231454903657293676544*x151_bit68 -604462909807314587353088*x151_bit69 -1208925819614629174706176*x151_bit70 -2417851639229258349412352*x151_bit71 -4835703278458516698824704*x151_bit72 -9671406556917033397649408*x151_bit73 -19342813113834066795298816*x151_bit74 -38685626227668133590597632*x151_bit75 -77371252455336267181195264*x151_bit76 -154742504910672534362390528*x151_bit77 -309485009821345068724781056*x151_bit78 -618970019642690137449562112*x151_bit79 >= -1024000000000000;
c Cannot parse input file name: /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-mas74.opb
s UNKNOWN
c Exit Code: 0
c Total time: 0.087 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): 0.93 0.98 0.99 2/54 21452
Raw data (stat): 21452 (runsolver) R 21451 20224 20223 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 773342110 1052672 99 4294967295 134512640 135381576 3221224496 3221219708 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+0.118192 s]
Raw data (loadavg): 0.93 0.98 0.99 1/53 21452
Raw data (stat): 21452 (runsolver) R 21451 20224 20223 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 773342110 1052672 99 4294967295 134512640 135381576 3221224496 3221219708 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 0
Real time (s): 0.117875
CPU time (s): 0.101984
CPU user time (s): 0.056991
CPU system time (s): 0.044993
CPU usage (%): 86.5188
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####