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/miplib3/normalized-mps-v2-20-10-dcmulti.opb
MD5SUM659e380dd1d6168ad99a794b3190043f
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 14235
Biggest coefficient in the objective function 714038312960
Number of bits for the biggest coefficient in the objective function 40
Sum of the numbers in the objective function 68224730472397
Number of bits of the sum of numbers in the objective function 46
Biggest number in a constraint 714038312960
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 68224730472397
Number of bits of the biggest sum of numbers46
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.12198
Number of variables14265
Total number of constraints365
Number of constraints which are clauses27
Number of constraints which are cardinality constraints (but not clauses)80
Number of constraints which are nor clauses,nor cardinality constraints258
Minimum length of a constraint1
Maximum length of a constraint420

Trace number 41168 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-09 07:33:19 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=29239 boxname=wulflinc3 idbench=1023 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  659e380dd1d6168ad99a794b3190043f  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-dcmulti.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-dcmulti.opb
IDLAUNCH: 29239
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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	: 2
cpu MHz		: 451.190
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:        887148 kB
Buffers:         15116 kB
Cached:         111628 kB
SwapCached:        756 kB
Active:          29620 kB
Inactive:        99208 kB
HighTotal:      131008 kB
HighFree:        56644 kB
LowTotal:       903652 kB
LowFree:        830504 kB
SwapTotal:     2097136 kB
SwapFree:      2095332 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5036 kB
Slab:            12900 kB
Committed_AS:    71784 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-09 07:33:48 (client local time) WITH STATUS 20 IN 28.4027 SECONDS
stats: 29239 7 28.4027 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 14265 variables and 308 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 28.378 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.81 0.93 0.91 2/54 5378
Raw data (stat): 5378 (runsolver) R 5377 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 908496978 884736 94 4294967295 134512640 135332820 3221224448 3221219628 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0006 s]
Raw data (loadavg): 0.84 0.93 0.91 2/54 5378
Raw data (stat): 5378 (bsolo_lpr_cuts-) R 5377 20224 20223 0 -1 0 3093 0 0 0 990 7 0 0 25 0 1 0 908496978 25649152 3013 4294967295 134512640 134716908 3221224560 3221222788 1077414345 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 6262 3013 1111 63 0 6199 0
vsize: 25048
[startup+20.0018 s]
Raw data (loadavg): 0.87 0.93 0.91 2/54 5378
Raw data (stat): 5378 (bsolo_lpr_cuts-) R 5377 20224 20223 0 -1 0 5762 0 0 0 1984 13 0 0 25 0 1 0 908496978 36597760 5682 4294967295 134512640 134716908 3221224560 3221221172 1077358305 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8935 5682 1111 63 0 8872 0
vsize: 35740
[startup+28.4206 s]
Raw data (loadavg): 0.88 0.93 0.91 1/53 5378
Raw data (stat): 5378 (bsolo_lpr_cuts-) R 5377 20224 20223 0 -1 0 5762 0 0 0 1984 13 0 0 25 0 1 0 908496978 36597760 5682 4294967295 134512640 134716908 3221224560 3221221172 1077358305 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 8935 5682 1111 63 0 8872 0
vsize: 0

Child status: 20
Real time (s): 28.4202
CPU time (s): 28.4027
CPU user time (s): 28.1447
CPU system time (s): 0.25796
CPU usage (%): 99.9383
Max. virtual memory (Kb): 35740
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####