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/MIPLIB/miplib/normalized-mps-v2-13-7-modglob.opb
MD5SUM6a1cb641fd0d264267e84120b98acbe3
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 6578
Biggest coefficient in the objective function 21493710848000000
Number of bits for the biggest coefficient in the objective function 55
Sum of the numbers in the objective function 1450509811657714210
Number of bits of the sum of numbers in the objective function 61
Biggest number in a constraint 21493710848000000
Number of bits of the biggest number in a constraint 55
Biggest sum of numbers in a constraint 1450509811657714210
Number of bits of the biggest sum of numbers61
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.06299
Number of variables6578
Total number of constraints389
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)98
Number of constraints which are nor clauses,nor cardinality constraints291
Minimum length of a constraint1
Maximum length of a constraint180

Trace number 15556 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc24 THE 2005-04-21 05:19:18 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=17067 boxname=wulflinc24 idbench=1313 idsolver=11 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6a1cb641fd0d264267e84120b98acbe3  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-13-7-modglob.opb
REAL COMMAND:  minisat+ -S /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-13-7-modglob.opb /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-13-7-modglob.opb
IDLAUNCH: 17067
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.080
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		: 451.080
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:        634912 kB
Buffers:          6020 kB
Cached:         366528 kB
SwapCached:        432 kB
Active:          27152 kB
Inactive:       347492 kB
HighTotal:      131008 kB
HighFree:        10556 kB
LowTotal:       903652 kB
LowFree:        624356 kB
SwapTotal:     2097892 kB
SwapFree:      2096708 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5932 kB
Slab:            19476 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-21 05:19:18 (client local time) WITH STATUS 1 IN 0.009998 SECONDS
stats: 17067 7 0.009998 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
PARSE ERROR! [line 426] Integer overflow. Big numbers not supported yet.
#### 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): 0.78 0.91 0.90 2/54 25543
Raw data (stat): 25543 (runsolver) R 25542 28546 28545 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 542502511 1052672 99 4294967295 134512640 135381576 3221224432 3221219676 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+0.021463 s]
Raw data (loadavg): 0.78 0.91 0.90 1/53 25543
Raw data (stat): 25543 (runsolver) R 25542 28546 28545 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 542502511 1052672 99 4294967295 134512640 135381576 3221224432 3221219676 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: 1
Real time (s): 0.021215
CPU time (s): 0.009998
CPU user time (s): 0.004999
CPU system time (s): 0.004999
CPU usage (%): 47.127
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####