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-200-2_0-yes1-3.opb
MD5SUM6945c653f2f5a8b612521f3899ab449c
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 benchmark0.05399
Number of variables400
Total number of constraints600
Number of constraints which are clauses599
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint3

Trace number 945

Launcher Data

LAUNCH ON wulflinc15 THE 2005-09-18 13:15:19 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=3611 boxname=wulflinc15 idbench=95 idsolver=4 numberseed=0
MD5SUM SOLVER: 21c3ffd7205c96d5f0784fd273b92938  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  6945c653f2f5a8b612521f3899ab449c  /oldhome/oroussel/tmp/wulflinc15/normalized-aim-200-2_0-yes1-3.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc15/normalized-aim-200-2_0-yes1-3.opb
IDLAUNCH: 3611
/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:        933616 kB
Buffers:         35692 kB
Cached:          36308 kB
SwapCached:        692 kB
Active:          57292 kB
Inactive:        17320 kB
HighTotal:      131008 kB
HighFree:        91532 kB
LowTotal:       903652 kB
LowFree:        842084 kB
SwapTotal:     2097136 kB
SwapFree:      2095920 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5724 kB
Slab:            20820 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-18 13:15:20 (client local time) WITH STATUS 30 IN 0.105983 SECONDS
stats: 3611 0 0.105983 30

Solver Data

c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc15/normalized-aim-200-2_0-yes1-3.opb ......
c The optimum solution is:200
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 
c Done, CPU Time=0.071989

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/5375/stat): 5375 (PBS4) R 5374 5375 31778 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 1783300337 978944 2 4294967295 134512640 135450776 3221224560 3221224560 134512960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/5375/statm): 239 2 232 232 0 7 0
[pid=5375] vsize: 956
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc15/normalized-aim-200-2_0-yes1-3.opb
open syscall for file /oldhome/oroussel/tmp/wulflinc15/normalized-aim-200-2_0-yes1-3.opb
One traced child (pid=5375) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 0.12871
CPU time (s): 0.105983
CPU user time (s): 0.090986
CPU system time (s): 0.014997
CPU usage (%): 82.3425
Max. virtual memory (cumulated for all children) (Kb): 0

Verifier Data

Verifier:	OK	200