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-ii8a1.opb
MD5SUMb3cc2686c19f6e4ddbbeb52b8905fbf9
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 54
Optimality of the best value was proved NO
Number of terms in the objective function 132
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 132
Number of bits of the sum of numbers in the objective function 8
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 132
Number of bits of the biggest sum of numbers8
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.763883
Number of variables132
Total number of constraints252
Number of constraints which are clauses252
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 constraint2
Maximum length of a constraint8

Trace number 7702 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc10 THE 2005-04-17 16:14:28 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=1464 boxname=wulflinc10 idbench=163 idsolver=6 numberseed=0
MD5SUM SOLVER: 2225cba0d9b2c30e235f6cafc823d7ac  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  b3cc2686c19f6e4ddbbeb52b8905fbf9  /oldhome/oroussel/tmp/wulflinc10/normalized-ii8a1.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc10/normalized-ii8a1.opb
IDLAUNCH: 1464
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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		: 450.999
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:        816780 kB
Buffers:         36612 kB
Cached:         160356 kB
SwapCached:        164 kB
Active:          78684 kB
Inactive:       121292 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        816528 kB
SwapTotal:     2097136 kB
SwapFree:      2096972 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6928 kB
Slab:            12308 kB
Committed_AS:    63484 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-17 16:14:33 (client local time) WITH STATUS 30 IN 4.52831 SECONDS
stats: 1464 0 4.52831 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc10/normalized-ii8a1.opb ......
c The optimum solution is:54
s OPTIMUM FOUND
v x1 -x10 x100 -x101 x102 x103 -x104 -x105 x106 -x107 x108 x109 x11 -x110 -x111 x112 -x113 x114 -x115 x116 x117 -x118 -x119 -x12 x120 x121 -x122 -x123 x124 -x125 x126 -x127 x128 -x129 -x13 x130 x131 -x132 x14 x15 -x16 x17 -x18 x19 -x2 -x20 x21 -x22 x23 -x24 x25 -x26 -x27 x28 x29 x3 -x30 x31 -x32 -x33 -x34 x35 -x36 -x37 x38 x39 -x4 -x40 x41 -x42 -x43 -x44 x45 -x46 -x47 -x48 x49 x5 -x50 -x51 -x52 x53 -x54 -x55 -x56 -x57 x58 x59 -x6 -x60 x61 -x62 -x63 -x64 x65 -x66 -x67 -x68 -x69 x7 x70 x71 -x72 x73 -x74 -x75 x76 -x77 -x78 x79 -x8 -x80 -x81 -x82 x83 -x84 -x85 -x86 x87 -x88 -x89 x9 -x90 x91 -x92 -x93 -x94 x95 -x96 x97 -x98 -x99 
c Done, CPU Time=4.51431
#### 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 0.85 2/54 18255
Raw data (stat): 18255 (runsolver) R 18254 25347 25346 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 453658894 1052672 99 4294967295 134512640 135381576 3221224544 3221219792 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+4.53556 s]
Raw data (loadavg): 0.93 0.98 0.85 1/53 18255
Raw data (stat): 18255 (runsolver) R 18254 25347 25346 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 453658894 1052672 99 4294967295 134512640 135381576 3221224544 3221219792 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: 30
Real time (s): 4.53532
CPU time (s): 4.52831
CPU user time (s): 4.50131
CPU system time (s): 0.026995
CPU usage (%): 99.8454
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	54
#### END VERIFIER DATA ####