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/submitted/manquinho/primes-dimacs-cnf/normalized-ssa6288-047.opb
MD5SUM9adce8cbe88d8b4cea00449510319da7
Bench Categoryoptimization, small integers (OPTSMALLINT)
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 20820
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 20820
Number of bits of the sum of numbers in the objective function 15
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 20820
Number of bits of the biggest sum of numbers15
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.177972
Number of variables20820
Total number of constraints44648
Number of constraints which are clauses44648
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint6

Trace number 40769 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-08 22:01:54 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=28840 boxname=wulflinc5 idbench=226 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  9adce8cbe88d8b4cea00449510319da7  /oldhome/oroussel/tmp/wulflinc5/normalized-ssa6288-047.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-ssa6288-047.opb
IDLAUNCH: 28840
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        833024 kB
Buffers:         29500 kB
Cached:         149984 kB
SwapCached:        648 kB
Active:          42032 kB
Inactive:       139496 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        832772 kB
SwapTotal:     2097136 kB
SwapFree:      2095528 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5084 kB
Slab:            14340 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-08 22:02:19 (client local time) WITH STATUS 20 IN 25.5741 SECONDS
stats: 28840 7 25.5741 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 20820 variables and 44648 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 25.55 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): 0.84 0.91 0.90 2/54 23055
Raw data (stat): 23055 (runsolver) R 23054 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 905076590 884736 94 4294967295 134512640 135332820 3221224464 3221219644 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+10.001 s]
Raw data (loadavg): 0.86 0.91 0.90 2/54 23055
Raw data (stat): 23055 (bsolo_lpr_cuts-) R 23054 7266 7265 0 -1 0 1256 0 0 0 994 3 0 0 25 0 1 0 905076590 18137088 1176 4294967295 134512640 134716908 3221224576 3221222804 1077414435 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4428 1176 1111 63 0 4365 0
vsize: 17712
[startup+20.0021 s]
Raw data (loadavg): 0.88 0.92 0.90 2/54 23055
Raw data (stat): 23055 (bsolo_lpr_cuts-) R 23054 7266 7265 0 -1 0 6288 0 0 0 1983 14 0 0 25 0 1 0 905076590 22904832 2346 4294967295 134512640 134716908 3221224576 3221222928 134568037 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5631 2347 1111 63 0 5568 0
vsize: 22368
[startup+25.6027 s]
Raw data (loadavg): 0.89 0.92 0.90 1/53 23055
Raw data (stat): 23055 (bsolo_lpr_cuts-) R 23054 7266 7265 0 -1 0 6288 0 0 0 1983 14 0 0 25 0 1 0 905076590 22904832 2346 4294967295 134512640 134716908 3221224576 3221222928 134568037 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5631 2347 1111 63 0 5568 0
vsize: 0

Child status: 20
Real time (s): 25.6021
CPU time (s): 25.5741
CPU user time (s): 25.1712
CPU system time (s): 0.402938
CPU usage (%): 99.8909
Max. virtual memory (Kb): 22368
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####