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-ssa0432-003.opb
MD5SUM049aa05bd0cb38bc58f95c2236cf9448
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 870
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 870
Number of bits of the sum of numbers in the objective function 10
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 870
Number of bits of the biggest sum of numbers10
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.049991
Number of variables870
Total number of constraints1462
Number of constraints which are clauses1462
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 constraint5

Trace number 24252 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-09 05:34:35 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=1999 boxname=wulflinc31 idbench=223 idsolver=1 numberseed=0
MD5SUM SOLVER: e973bb179fd0e01ec8c7277096f1c3ef  /oldhome/oroussel/solvers/bsolo_lpr
MD5SUM BENCH:  049aa05bd0cb38bc58f95c2236cf9448  /oldhome/oroussel/tmp/wulflinc31/normalized-ssa0432-003.opb
REAL COMMAND:  bsolo_lpr /oldhome/oroussel/tmp/wulflinc31/normalized-ssa0432-003.opb
IDLAUNCH: 1999
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
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	: 3
cpu MHz		: 451.153
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        134568 kB
Buffers:         43552 kB
Cached:         822056 kB
SwapCached:        644 kB
Active:         496316 kB
Inactive:       371612 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        134316 kB
SwapTotal:     2097892 kB
SwapFree:      2096612 kB
Dirty:              48 kB
Writeback:           0 kB
Mapped:           5608 kB
Slab:            26512 kB
Committed_AS:    63632 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-09 05:35:41 (client local time) WITH STATUS 20 IN 65.546 SECONDS
stats: 1999 7 65.546 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c Initial problem consists of 870 variables and 1462 constraints.
c After prepocess the problem consists of 132 variables and 282 constraints.
c preprocess terminated 62.71 s
c Initial Lower Bound: 424
c Lower Bound Elapsed time: 0.0703333
c Use computed LB before first solution.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 65.508 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
Raw data (loadavg): 0.72 0.73 0.78 2/54 24595
Raw data (stat): 24595 (runsolver) R 24594 7876 7672 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 698121557 1056768 100 4294967295 134512640 135381576 3221221680 3221216900 135158418 0 2147483391 1 90112 0 0 0 17 0 0 0
Raw data (statm): 258 100 215 215 0 43 0
vsize: 1032
[startup+10.0003 s]
Raw data (loadavg): 0.76 0.74 0.78 2/54 24595
Raw data (stat): 24595 (bsolo_lpr) R 24594 7876 7672 0 -1 0 7184 0 0 0 978 18 0 0 25 0 1 0 698121557 12038144 2106 4294967295 134512640 134714508 3221221792 3221220432 134606498 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 2939 2106 1111 63 0 2876 0
vsize: 11756
[startup+20.0014 s]
Raw data (loadavg): 0.80 0.75 0.79 2/54 24595
Raw data (stat): 24595 (bsolo_lpr) R 24594 7876 7672 0 -1 0 7646 0 0 0 1977 19 0 0 25 0 1 0 698121557 12283904 2138 4294967295 134512640 134714508 3221221792 3221220464 134627187 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 2999 2138 1111 63 0 2936 0
vsize: 11996
[startup+30.002 s]
Raw data (loadavg): 0.83 0.75 0.79 2/54 24595
Raw data (stat): 24595 (bsolo_lpr) R 24594 7876 7672 0 -1 0 7740 0 0 0 2977 19 0 0 25 0 1 0 698121557 12554240 2232 4294967295 134512640 134714508 3221221792 3221220448 134627348 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 3065 2232 1111 63 0 3002 0
vsize: 12260
[startup+40.002 s]
Raw data (loadavg): 0.85 0.76 0.79 2/54 24595
Raw data (stat): 24595 (bsolo_lpr) R 24594 7876 7672 0 -1 0 7850 0 0 0 3977 20 0 0 25 0 1 0 698121557 13094912 2342 4294967295 134512640 134714508 3221221792 3221220464 134627250 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 3197 2342 1111 63 0 3134 0
vsize: 12788
[startup+50.0024 s]
Raw data (loadavg): 0.87 0.77 0.79 2/54 24595
Raw data (stat): 24595 (bsolo_lpr) R 24594 7876 7672 0 -1 0 7959 0 0 0 4977 20 0 0 25 0 1 0 698121557 13500416 2451 4294967295 134512640 134714508 3221221792 3221220448 134627286 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 3296 2451 1111 63 0 3233 0
vsize: 13184
[startup+60.0028 s]
Raw data (loadavg): 0.89 0.78 0.79 2/54 24595
Raw data (stat): 24595 (bsolo_lpr) R 24594 7876 7672 0 -1 0 8065 0 0 0 5976 20 0 0 25 0 1 0 698121557 13905920 2557 4294967295 134512640 134714508 3221221792 3221220464 134627244 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 3395 2557 1111 63 0 3332 0
vsize: 13580
[startup+65.5782 s]
Raw data (loadavg): 0.90 0.78 0.79 1/53 24595
Raw data (stat): 24595 (bsolo_lpr) R 24594 7876 7672 0 -1 0 8065 0 0 0 5976 20 0 0 25 0 1 0 698121557 13905920 2557 4294967295 134512640 134714508 3221221792 3221220464 134627244 0 0 1 0 0 0 0 17 0 0 0
Raw data (statm): 3395 2557 1111 63 0 3332 0
vsize: 0

Child status: 20
Real time (s): 65.5779
CPU time (s): 65.546
CPU user time (s): 65.1951
CPU system time (s): 0.350946
CPU usage (%): 99.9513
Max. virtual memory (Kb): 13580
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####