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-v2-13-7/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-neos14.opb
MD5SUMd3bbe7ee2ebffaf54618c2406e4fe00a
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 7208
Biggest coefficient in the objective function 524288000000000000
Number of bits for the biggest coefficient in the objective function 59
Sum of the numbers in the objective function 75579306006666674176
Number of bits of the sum of numbers in the objective function 67
Biggest number in a constraint 524288000000000000
Number of bits of the biggest number in a constraint 59
Biggest sum of numbers in a constraint 75579306006666674176
Number of bits of the biggest sum of numbers67
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1246.29
Number of variables12008
Total number of constraints792
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)136
Number of constraints which are nor clauses,nor cardinality constraints656
Minimum length of a constraint1
Maximum length of a constraint100

Trace number 25270

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-18 02:49:31 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=19566 boxname=wulflinc31 idbench=1506 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  d3bbe7ee2ebffaf54618c2406e4fe00a  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-neos14.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-neos14.opb
IDLAUNCH: 19566
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
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		: 451.153
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:        906712 kB
Buffers:          5452 kB
Cached:         100716 kB
SwapCached:        932 kB
Active:          58788 kB
Inactive:        50616 kB
HighTotal:      131008 kB
HighFree:        26432 kB
LowTotal:       903652 kB
LowFree:        880280 kB
SwapTotal:     2097892 kB
SwapFree:      2096072 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5380 kB
Slab:            12796 kB
Committed_AS:    63840 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-18 02:49:48 (client local time) WITH STATUS 0 IN 16.3925 SECONDS
stats: 19566 7 16.3925 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c ERROR Parsing file!!!
c ERROR parsing line: -390625*C0001_bit_7 -781250*C0001_bit_6 -1562500*C0001_bit_5 -3125000*C0001_bit_4 -6250000*C0001_bit_3 -12500000*C0001_bit_2 -25000000*C0001_bit_1 -50000000*C0001_bit0 -100000000*C0001_bit1 -200000000*C0001_bit2 -400000000*C0001_bit3 -800000000*C0001_bit4 -1600000000*C0001_bit5 -3200000000*C0001_bit6 -6400000000*C0001_bit7 -12800000000*C0001_bit8 -25600000000*C0001_bit9 -51200000000*C0001_bit10 -102400000000*C0001_bit11 -204800000000*C0001_bit12 -390625*C0025_bit_7 -781250*C0025_bit_6 -1562500*C0025_bit_5 -3125000*C0025_bit_4 -6250000*C0025_bit_3 -12500000*C0025_bit_2 -25000000*C0025_bit_1 -50000000*C0025_bit0 -100000000*C0025_bit1 -200000000*C0025_bit2 -400000000*C0025_bit3 -800000000*C0025_bit4 -1600000000*C0025_bit5 -3200000000*C0025_bit6 -6400000000*C0025_bit7 -12800000000*C0025_bit8 -25600000000*C0025_bit9 -51200000000*C0025_bit10 -102400000000*C0025_bit11 -204800000000*C0025_bit12 -390625*C0121_bit_7 -781250*C0121_bit_6 -1562500*C0121_bit_5 -3125000*C0121_bit_4 -6250000*C0121_bit_3 -12500000*C0121_bit_2 -25000000*C0121_bit_1 -50000000*C0121_bit0 -100000000*C0121_bit1 -200000000*C0121_bit2 -400000000*C0121_bit3 -800000000*C0121_bit4 -1600000000*C0121_bit5 -3200000000*C0121_bit6 -6400000000*C0121_bit7 -12800000000*C0121_bit8 -25600000000*C0121_bit9 -51200000000*C0121_bit10 -102400000000*C0121_bit11 -204800000000*C0121_bit12 +390625*C0241_bit_7 +781250*C0241_bit_6 +1562500*C0241_bit_5 +3125000*C0241_bit_4 +6250000*C0241_bit_3 +12500000*C0241_bit_2 +25000000*C0241_bit_1 +50000000*C0241_bit0 +100000000*C0241_bit1 +200000000*C0241_bit2 +400000000*C0241_bit3 +800000000*C0241_bit4 +1600000000*C0241_bit5 +3200000000*C0241_bit6 +6400000000*C0241_bit7 +12800000000*C0241_bit8 +25600000000*C0241_bit9 +51200000000*C0241_bit10 +102400000000*C0241_bit11 +204800000000*C0241_bit12 >= -9988425926;
c Cannot parse input file name: /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-neos14.opb
s UNKNOWN
c Exit Code: 0
c Total time: 16.355 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): 0.77 0.93 0.90 2/55 1732
Raw data (stat): 1732 (runsolver) R 1731 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 774900023 1056768 100 4294967295 134512640 135381576 3221221680 3221216900 135158418 0 2147483391 1 90112 0 0 0 17 1 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+10 s]
Raw data (loadavg): 0.81 0.93 0.90 2/55 1732
Raw data (stat): 1732 (bsolo_lpr) R 1731 7876 7672 0 -1 0 3106 0 0 0 986 9 0 0 25 0 1 0 774900023 25784320 3029 4294967295 134512640 134714508 3221221776 3221220004 1077414388 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 6295 3029 1111 63 0 6232 0
vsize: 25180
[startup+16.4361 s]
Raw data (loadavg): 0.82 0.93 0.90 1/54 1732
Raw data (stat): 1732 (bsolo_lpr) R 1731 7876 7672 0 -1 0 3106 0 0 0 986 9 0 0 25 0 1 0 774900023 25784320 3029 4294967295 134512640 134714508 3221221776 3221220004 1077414388 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 6295 3029 1111 63 0 6232 0
vsize: 0

Child status: 0
Real time (s): 16.4355
CPU time (s): 16.3925
CPU user time (s): 16.0746
CPU system time (s): 0.317951
CPU usage (%): 99.7383
Max. virtual memory (Kb): 25180
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####