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-neos15.opb
MD5SUMb9f2d6d55f20df770e36766d58f8055f
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 7040
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 75579061049066668032
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 75579061049066668032
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 benchmark1244.65
Number of variables11840
Total number of constraints792
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)160
Number of constraints which are nor clauses,nor cardinality constraints632
Minimum length of a constraint1
Maximum length of a constraint100

Trace number 25492

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-19 21:53:00 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=19580 boxname=wulflinc31 idbench=1507 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  b9f2d6d55f20df770e36766d58f8055f  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-neos15.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-13-7-neos15.opb
IDLAUNCH: 19580
/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:        894328 kB
Buffers:         15488 kB
Cached:         104156 kB
SwapCached:        920 kB
Active:          46516 kB
Inactive:        75288 kB
HighTotal:      131008 kB
HighFree:        24724 kB
LowTotal:       903652 kB
LowFree:        869604 kB
SwapTotal:     2097892 kB
SwapFree:      2095972 kB
Dirty:             588 kB
Writeback:           0 kB
Mapped:           5088 kB
Slab:            12800 kB
Committed_AS:    63860 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-19 21:53:15 (client local time) WITH STATUS 0 IN 14.1678 SECONDS
stats: 19580 7 14.1678 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-neos15.opb
s UNKNOWN
c Exit Code: 0
c Total time: 14.124 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): 0.85 0.95 0.96 2/55 25378
Raw data (stat): 25378 (runsolver) R 25377 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 790402656 1056768 100 4294967295 134512640 135381576 3221221680 3221216896 135158418 0 0 1 90112 0 0 0 17 1 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+10.0003 s]
Raw data (loadavg): 0.87 0.95 0.96 2/55 25378
Raw data (stat): 25378 (bsolo_lpr_cuts) R 25377 7876 7672 0 -1 0 4034 0 0 0 985 10 0 0 25 0 1 0 790402656 29605888 3957 4294967295 134512640 134714508 3221221776 3221220004 1077414336 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 7228 3957 1111 63 0 7165 0
vsize: 28912
[startup+14.2098 s]
Raw data (loadavg): 0.88 0.95 0.96 1/54 25378
Raw data (stat): 25378 (bsolo_lpr_cuts) R 25377 7876 7672 0 -1 0 4034 0 0 0 985 10 0 0 25 0 1 0 790402656 29605888 3957 4294967295 134512640 134714508 3221221776 3221220004 1077414336 0 0 1 0 0 0 0 17 1 0 0
Raw data (statm): 7228 3957 1111 63 0 7165 0
vsize: 0

Child status: 0
Real time (s): 14.2092
CPU time (s): 14.1678
CPU user time (s): 13.8899
CPU system time (s): 0.277957
CPU usage (%): 99.7091
Max. virtual memory (Kb): 28912
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####