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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-grow22.opb
MD5SUM252426e4d147311f236e947ac8e9f53d
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 1958
Biggest coefficient in the objective function 3758096384
Number of bits for the biggest coefficient in the objective function 32
Sum of the numbers in the objective function 234612588283
Number of bits of the sum of numbers in the objective function 38
Biggest number in a constraint 878188741787648
Number of bits of the biggest number in a constraint 50
Biggest sum of numbers in a constraint 4550739094651140
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1264.78
Number of variables25124
Total number of constraints1320
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 constraints1320
Minimum length of a constraint22
Maximum length of a constraint491

Trace number 22778 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-04-22 04:00:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=10920 boxname=wulflinc1 idbench=840 idsolver=13 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  252426e4d147311f236e947ac8e9f53d  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-grow22.opb
REAL COMMAND:  minisat+ -w /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-grow22.opb /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-grow22.opb
IDLAUNCH: 10920
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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	: 2
cpu MHz		: 451.053
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:        471056 kB
Buffers:          6340 kB
Cached:         532016 kB
SwapCached:          0 kB
Active:         106164 kB
Inactive:       435344 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        470804 kB
SwapTotal:     2097136 kB
SwapFree:      2096968 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           7172 kB
Slab:            16260 kB
Committed_AS:    92808 kB
PageTables:        344 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-22 04:00:54 (client local time) WITH STATUS 1 IN 0.212966 SECONDS
stats: 10920 7 0.212966 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
PARSE ERROR! [line 1831] 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): 0.73 0.90 0.89 2/56 9796
Raw data (stat): 9796 (runsolver) R 9795 12452 12451 0 -1 64 4 0 0 0 0 0 0 0 20 0 1 0 435600091 1052672 99 4294967295 134512640 135381576 3221224448 3221219692 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+0.220715 s]
Raw data (loadavg): 0.73 0.90 0.89 1/55 9796
Raw data (stat): 9796 (runsolver) R 9795 12452 12451 0 -1 64 4 0 0 0 0 0 0 0 20 0 1 0 435600091 1052672 99 4294967295 134512640 135381576 3221224448 3221219692 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 1
Real time (s): 0.220435
CPU time (s): 0.212966
CPU user time (s): 0.179972
CPU system time (s): 0.032994
CPU usage (%): 96.6117
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####