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/miplib/normalized-mps-v2-20-10-flugpl.opb
MD5SUM7b40a76c609224f38c1798eb54355221
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 14745600
Optimality of the best value was proved NO
Number of terms in the objective function 265
Biggest coefficient in the objective function 48318382080
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 103103023008
Number of bits of the sum of numbers in the objective function 37
Biggest number in a constraint 80530636800
Number of bits of the biggest number in a constraint 37
Biggest sum of numbers in a constraint 162146381673
Number of bits of the biggest sum of numbers38
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark21.8077
Number of variables265
Total number of constraints29
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints29
Minimum length of a constraint5
Maximum length of a constraint65

Trace number 16964 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc22 THE 2005-04-21 09:33:11 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=11869 boxname=wulflinc22 idbench=913 idsolver=13 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  7b40a76c609224f38c1798eb54355221  /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-flugpl.opb
REAL COMMAND:  minisat+ -w /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-flugpl.opb /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-20-10-flugpl.opb
IDLAUNCH: 11869
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.031
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		: 451.031
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:        536280 kB
Buffers:         31880 kB
Cached:         436276 kB
SwapCached:         24 kB
Active:         153392 kB
Inactive:       317400 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        536028 kB
SwapTotal:     2097892 kB
SwapFree:      2097660 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6640 kB
Slab:            21960 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-21 09:33:11 (client local time) WITH STATUS 1 IN 0.015996 SECONDS
stats: 11869 7 0.015996 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
PARSE ERROR! [line 22] 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): 0.92 0.98 0.94 2/54 30648
Raw data (stat): 30648 (runsolver) R 30647 26298 26297 0 -1 64 0 0 0 0 0 0 0 0 19 0 1 0 544027789 1052672 97 4294967295 134512640 135381576 3221224432 3221219872 134514522 0 0 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 97 215 215 0 42 0
vsize: 1028
[startup+0.020802 s]
Raw data (loadavg): 0.92 0.98 0.94 1/53 30648
Raw data (stat): 30648 (runsolver) R 30647 26298 26297 0 -1 64 0 0 0 0 0 0 0 0 19 0 1 0 544027789 1052672 97 4294967295 134512640 135381576 3221224432 3221219872 134514522 0 0 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 97 215 215 0 42 0
vsize: 0

Child status: 1
Real time (s): 0.020569
CPU time (s): 0.015996
CPU user time (s): 0.007998
CPU system time (s): 0.007998
CPU usage (%): 77.7675
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####