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/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-roll3000.opb
MD5SUMb5e0cd2fd527d211d525adea6c422112
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 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 1024000000000
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 2123511627775
Number of bits of the biggest sum of numbers41
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.70674
Number of variables8902
Total number of constraints3459
Number of constraints which are clauses143
Number of constraints which are cardinality constraints (but not clauses)626
Number of constraints which are nor clauses,nor cardinality constraints2690
Minimum length of a constraint1
Maximum length of a constraint2407

Trace number 27848 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc23 THE 2005-05-24 23:41:37 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=15199 boxname=wulflinc23 idbench=1170 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  b5e0cd2fd527d211d525adea6c422112  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-roll3000.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-roll3000.opb
IDLAUNCH: 15199
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.037
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	: 3
cpu MHz		: 451.037
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:        843016 kB
Buffers:         13268 kB
Cached:         156636 kB
SwapCached:        640 kB
Active:          35548 kB
Inactive:       136812 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        842764 kB
SwapTotal:     2097136 kB
SwapFree:      2096032 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5628 kB
Slab:            13648 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-24 23:41:38 (client local time) WITH STATUS 0 IN 0.039993 SECONDS
stats: 15199 7 0.039993 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c ERROR Parsing file!!!
c ERROR parsing line: -1*Obj_bit_10 -2*Obj_bit_9 -4*Obj_bit_8 -8*Obj_bit_7 -16*Obj_bit_6 -32*Obj_bit_5 -64*Obj_bit_4 -128*Obj_bit_3 -256*Obj_bit_2 -512*Obj_bit_1 -1024*Obj_bit0 -2048*Obj_bit1 -4096*Obj_bit2 -8192*Obj_bit3 -16384*Obj_bit4 -32768*Obj_bit5 -65536*Obj_bit6 -131072*Obj_bit7 -262144*Obj_bit8 -524288*Obj_bit9 -1048576*Obj_bit10 -2097152*Obj_bit11 -4194304*Obj_bit12 -8388608*Obj_bit13 -16777216*Obj_bit14 -33554432*Obj_bit15 -67108864*Obj_bit16 -134217728*Obj_bit17 -268435456*Obj_bit18 -536870912*Obj_bit19 -1073741824*Obj_bit20 -2147483648*Obj_bit21 -4294967296*Obj_bit22 -8589934592*Obj_bit23 -17179869184*Obj_bit24 -34359738368*Obj_bit25 -68719476736*Obj_bit26 -137438953472*Obj_bit27 -274877906944*Obj_bit28 -549755813888*Obj_bit29 >= -1024000000000;
c Cannot parse input file name: /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-roll3000.opb
s UNKNOWN
c Exit Code: 0
c Total time: 0.025 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): 0.84 0.94 0.90 2/54 11984
Raw data (stat): 11984 (runsolver) R 11983 5562 5561 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 834281134 1052672 99 4294967295 134512640 135381576 3221224480 3221219692 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+0.056116 s]
Raw data (loadavg): 0.84 0.94 0.90 1/53 11984
Raw data (stat): 11984 (runsolver) R 11983 5562 5561 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 834281134 1052672 99 4294967295 134512640 135381576 3221224480 3221219692 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 0
Real time (s): 0.05585
CPU time (s): 0.039993
CPU user time (s): 0.020996
CPU system time (s): 0.018997
CPU usage (%): 71.6079
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####