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-aim-200-6_0-yes1-4.opb
MD5SUMd01b026f0dbb3ffe5ac207946f109d68
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 200
Optimality of the best value was proved YES
Number of terms in the objective function 400
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 400
Number of bits of the sum of numbers in the objective function 9
Biggest number in a constraint 2
Number of bits of the biggest number in a constraint 2
Biggest sum of numbers in a constraint 400
Number of bits of the biggest sum of numbers9
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark0.088986
Number of variables400
Total number of constraints1400
Number of constraints which are clauses1393
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints7
Minimum length of a constraint2
Maximum length of a constraint3

Trace number 9549

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-23 14:23:37 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8307 boxname=wulflinc1 idbench=103 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d01b026f0dbb3ffe5ac207946f109d68  /oldhome/oroussel/tmp/wulflinc1/normalized-aim-200-6_0-yes1-4.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-aim-200-6_0-yes1-4.opb
IDLAUNCH: 8307
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.228
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		: 451.228
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:        888024 kB
Buffers:         12304 kB
Cached:         116828 kB
SwapCached:          0 kB
Active:          76480 kB
Inactive:        55584 kB
HighTotal:      131008 kB
HighFree:        17668 kB
LowTotal:       903652 kB
LowFree:        870356 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             8912 kB
Committed_AS:    63656 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 14:23:43 (client local time) WITH STATUS 30 IN 6.13607 SECONDS
stats: 8307 0 6.13607 30

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 200
c small objective detected
c CONFLICT during preprocess 
c [startup+3.10345 s]  setting bit 8 to 0
c CONFLICT during preprocess 
c [startup+3.42285 s]  setting bit 7 to 0
c CONFLICT during preprocess 
c [startup+3.764 s]  setting bit 6 to 0
c CONFLICT during preprocess 
c [startup+4.10695 s]  setting bit 5 to 0
c CONFLICT during preprocess 
c [startup+4.45265 s]  setting bit 4 to 0
c CONFLICT during preprocess 
c [startup+4.79043 s]  setting bit 3 to 0
c CONFLICT during preprocess 
c [startup+5.13199 s]  setting bit 2 to 0
c CONFLICT during preprocess 
c [startup+5.46567 s]  setting bit 1 to 0
c CONFLICT during preprocess 
c [startup+5.79961 s]  setting bit 0 to 0
c CONFLICT during preprocess 
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 x133 -x134 -x135 x136 -x137 x138 -x139 -x14 x140 -x141 x142 x143 -x144 x145 -x146 -x147 x148 -x149 -x15 x150 -x151 x152 -x153 x154 -x155 x156 -x157 x158 x159 x16 -x160 -x161 x162 -x163 x164 -x165 x166 x167 -x168 -x169 x17 x170 -x171 x172 -x173 x174 -x175 x176 -x177 x178 x179 -x18 -x180 x181 -x182 -x183 x184 -x185 x186 x187 -x188 x189 x19 -x190 -x191 x192 x193 -x194 x195 -x196 x197 -x198 -x199 -x2 -x20 x200 x201 -x202 -x203 x204 -x205 x206 -x207 x208 x209 x21 -x210 x211 -x212 x213 -x214 x215 -x216 x217 -x218 -x219 -x22 x220 -x221 x222 -x223 x224 -x225 x226 -x227 x228 x229 -x23 -x230 -x231 x232 -x233 x234 x235 -x236 x237 -x238 -x239 x24 x240 -x241 x242 x243 -x244 -x245 x246 -x247 x248 x249 -x25 -x250 x251 -x252 -x253 x254 -x255 x256 -x257 x258 -x259 x26 x260 x261 -x262 -x263 x264 -x265 x266 -x267 x268 x269 x27 -x270 x271 -x272 x273 -x274 -x275 x276 -x277 x278 -x279 -x28 x280 -x281 x282 -x283 x284 -x285 x286 x287 -x288 -x289 -x29 x290 x291 -x292 x293 -x294 x295 -x296 x297 -x298 -x299 -x3 x30 x300 -x301 x302 -x303 x304 x305 -x306 -x307 x308 -x309 -x31 x310 -x311 x312 -x313 x314 x315 -x316 -x317 x318 -x319 x32 x320 -x321 x322 -x323 x324 x325 -x326 x327 -x328 x329 -x33 -x330 x331 -x332 -x333 x334 x335 -x336 x337 -x338 x339 x34 -x340 -x341 x342 -x343 x344 x345 -x346 -x347 x348 -x349 x35 x350 -x351 x352 -x353 x354 -x355 x356 -x357 x358 x359 -x36 -x360 x361 -x362 -x363 x364 -x365 x366 -x367 x368 -x369 -x37 x370 x371 -x372 -x373 x374 -x375 x376 -x377 x378 -x379 x38 x380 -x381 x382 -x383 x384 -x385 x386 x387 -x388 -x389 x39 x390 x391 -x392 -x393 x394 -x395 x396 x397 -x398 x399 x4 -x40 -x400 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/8056/stat): 8056 (pb2sat) R 8055 8056 4704 0 -1 0 18 0 0 0 0 0 0 0 19 0 1 0 20899586 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8056/statm): 373 2 364 364 0 9 0
[pid=8056] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc1/normalized-aim-200-6_0-yes1-4.opb
One traced child (pid=8056) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 6.16258
CPU time (s): 6.13607
CPU user time (s): 5.87611
CPU system time (s): 0.25996
CPU usage (%): 99.5698
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	200