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).
    Note that some very long lines in this section may be truncated by your web browser !
  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

Namesubmitted/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 YES
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 benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark0.809876
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 9596

Launcher Data

LAUNCH ON wulflinc31 THE 2005-09-23 14:42:13 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8359 boxname=wulflinc31 idbench=155 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  b3cc2686c19f6e4ddbbeb52b8905fbf9  /oldhome/oroussel/tmp/wulflinc31/normalized-ii8a1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc31/normalized-ii8a1.opb
IDLAUNCH: 8359
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.047
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		: 451.047
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:        928248 kB
Buffers:         18264 kB
Cached:          69524 kB
SwapCached:          0 kB
Active:          41252 kB
Inactive:        49440 kB
HighTotal:      131008 kB
HighFree:        57540 kB
LowTotal:       903652 kB
LowFree:        870708 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10032 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 14:42:25 (client local time) WITH STATUS 30 IN 11.8952 SECONDS
stats: 8359 0 11.8952 30

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 66
c small objective detected
c CONFLICT during preprocess 
c [startup+0.31999 s]  setting bit 7 to 0
c [startup+0.360534 s]  setting bit 6 to 0
c [startup+0.666852 s]  setting bit 5 to 0
c [startup+4.71427 s]  setting bit 4 to 0
c got solution with objective value: 57
c [startup+4.75959 s]  setting bit 3 to 1
c [startup+11.93 s]  setting bit 2 to 0
c got solution with objective value: 55
c [startup+11.977 s]  setting bit 1 to 1
c got solution with objective value: 54
c [startup+12.0319 s]  setting bit 0 to 1
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 

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/7011/stat): 7011 (pb2sat) R 7010 7011 4005 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 20950096 1527808 2 4294967295 134512640 135987407 3221224576 3221224576 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/7011/statm): 373 2 364 364 0 9 0
[pid=7011] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc31/normalized-ii8a1.opb

[startup+10.0017 s]
Raw data (loadavg): 0.93 0.98 0.99 2/55 7011
Raw data (/proc/7011/stat): 7011 (pb2sat) R 7010 7011 4005 0 -1 0 1355 0 0 0 978 9 0 0 25 0 1 0 20950096 5738496 1072 4294967295 134512640 135987407 3221224576 3221223216 134812334 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7011/statm): 1401 1072 364 364 0 1037 0
[pid=7011] vsize: 5604
Current children cumulated CPU time (s) 9.87
Current children cumulated vsize (Kb) 5604
One traced child (pid=7011) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 12.0527
CPU time (s): 11.8952
CPU user time (s): 11.7772
CPU system time (s): 0.117982
CPU usage (%): 98.6934
Max. virtual memory (cumulated for all children) (Kb): 5604

Verifier Data

Verifier:	OK	54