Trace number 41882

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 into four (or five) parts:
  1. 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 ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. 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.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. 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 X seconds (see the parameters in the trace). 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 X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    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.
  5. 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 provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerObjective functionCPU timeWall clock time
PBS 4.1LOPT244 8.76067 8.83037

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/
manquinho/primes-dimacs-cnf/normalized-ii32b2.opb
MD5SUM074c87f3baaaee27cf79610ce4b49729
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark244
Best CPU time to get the best result obtained on this benchmark3.33749
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 244
Optimality of the best value was proved YES
Number of variables522
Total number of constraints2819
Number of constraints which are clauses2819
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 constraint32
Number of terms in the objective function 522
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 522
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 522
Number of bits of the biggest sum of numbers10
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00	c Solving ROOT/tmp/node69/41882-1149285607/instance-41882-1149285607.opb ......
0.10	c done parsing opb.
0.10	o 261
0.15	o 260
0.21	o 259
0.22	o 258
0.31	o 257
0.35	o 256
0.35	o 255
0.37	o 254
0.45	o 253
0.58	o 252
0.73	o 251
0.76	o 250
1.07	o 249
1.17	o 248
1.19	o 247
1.21	o 246
1.22	o 245
1.24	o 244
8.82	o 244
8.82	s OPTIMUM FOUND
8.82	c Total Run Time					8.72367
8.82	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
8.82	v -x120 x121 -x122 x123 -x124 -x125 x126 x127 -x128 -x129 x13 -x130 x131 -x132 -x133 -x134 x135 -x136 -x137 -x138 x139 -x14 -x140
8.82	v x141 -x142 x143 -x144 x145 -x146 x147 -x148 -x149 x15 -x150 x151 -x152 x153 -x154 x155 -x156 x157 -x158 -x159 -x16 x160 x161
8.82	v -x162 -x163 -x164 x165 -x166 -x167 x168 x169 x17 -x170 -x171 -x172 x173 -x174 -x175 -x176 -x177 -x178 x179 -x18 -x180 x181
8.82	v -x182 -x183 -x184 -x185 -x186 x187 -x188 x189 -x19 -x190 -x191 -x192 -x193 -x194 x195 -x196 x197 -x198 x199 -x2 x20 -x200 x201
8.82	v -x202 -x203 -x204 -x205 x206 x207 -x208 x209 x21 -x210 -x211 -x212 -x213 -x214 x215 -x216 x217 -x218 x219 -x22 -x220 x221 -x222
8.82	v x223 -x224 x225 -x226 -x227 -x228 x229 x23 -x230 x231 -x232 x233 -x234 x235 -x236 x237 -x238 x239 -x24 -x240 x241 -x242 x243
8.82	v -x244 x245 -x246 x247 -x248 -x249 x25 x250 x251 -x252 x253 -x254 x255 -x256 x257 -x258 x259 -x26 -x260 x261 -x262 x263 -x264
8.82	v x265 -x266 x267 -x268 x269 x27 -x270 x271 -x272 x273 -x274 x275 -x276 x277 -x278 x279 -x28 -x280 x281 -x282 x283 -x284 x285
8.82	v -x286 x287 -x288 x289 x29 -x290 x291 -x292 x293 -x294 x295 -x296 x297 -x298 x299 x3 -x30 -x300 x301 -x302 x303 -x304 x305 -x306
8.82	v x307 -x308 x309 x31 -x310 x311 -x312 x313 -x314 x315 -x316 x317 -x318 x319 -x32 -x320 x321 -x322 x323 -x324 x325 -x326 x327
8.82	v -x328 -x329 x33 x330 x331 -x332 x333 -x334 x335 -x336 x337 -x338 x339 -x34 -x340 x341 -x342 x343 -x344 x345 -x346 -x347 x348
8.82	v x349 x35 -x350 x351 -x352 x353 -x354 x355 -x356 -x357 x358 x359 -x36 -x360 x361 -x362 x363 -x364 x365 -x366 x367 -x368 x369
8.82	v x37 -x370 x371 -x372 x373 -x374 x375 -x376 x377 -x378 x379 -x38 -x380 x381 -x382 x383 -x384 x385 -x386 -x387 x388 -x389 x39
8.82	v x390 -x391 x392 -x393 x394 x395 -x396 -x397 x398 -x399 -x4 -x40 x400 x401 -x402 -x403 x404 -x405 x406 x407 -x408 -x409 x41 x410
8.82	v -x411 x412 x413 -x414 -x415 x416 x417 -x418 -x419 -x42 x420 -x421 x422 -x423 x424 x425 -x426 -x427 x428 -x429 x43 x430 x431
8.82	v -x432 -x433 x434 -x435 x436 x437 -x438 x439 -x44 -x440 -x441 x442 -x443 x444 x445 -x446 -x447 x448 -x449 x45 x450 -x451 x452
8.82	v -x453 x454 x455 -x456 -x457 -x458 -x459 -x46 x460 x461 -x462 -x463 x464 -x465 x466 x467 -x468 -x469 x47 x470 -x471 x472 x473
8.82	v -x474 -x475 x476 -x477 x478 x479 -x48 -x480 -x481 x482 -x483 x484 x485 -x486 -x487 x488 -x489 x49 x490 x491 -x492 x493 -x494
8.82	v -x495 x496 -x497 x498 x499 -x5 -x50 -x500 -x501 x502 -x503 x504 -x505 x506 -x507 x508 x509 x51 -x510 x511 -x512 -x513 x514 -x515
8.82	v x516 -x517 x518 x519 -x52 -x520 -x521 x522 x53 -x54 x55 -x56 x57 -x58 x59 x6 -x60 x61 -x62 x63 -x64 x65 -x66 x67 -x68 x69 x7 -x70
8.82	v 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
8.82	v x99

Verifier Data (download as text)

OK	244

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node69/watcher-41882-1149285607 -o ROOT/results/node69/solver-41882-1149285607 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node69/41882-1149285607/instance-41882-1149285607.opb 362237730 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.73 0.90 0.89 2/64 17934
/proc/meminfo: memFree=1818532/2055920 swapFree=4182216/4192956
[pid=17934] ppid=17932 vsize=1368 CPUtime=0
/proc/17934/stat : 17934 (PBS4L) D 17932 17934 17888 0 -1 4194304 111 0 0 0 0 0 0 0 19 0 1 0 194230735 1400832 95 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 135132864 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/17934/statm: 342 95 84 232 0 107 0

Child status: 0
Real time (s): 8.83037
CPU time (s): 8.76067
CPU user time (s): 8.72267
CPU system time (s): 0.037994
CPU usage (%): 99.2106
Max. virtual memory (cumulated for all children) (Kb): 0

Launcher Data (download as text)

Begin job on node69 on Fri Jun  2 22:00:07 UTC 2006


FILE ID= 41882-1149285607

PBS_JOBID= 306484

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/primes-dimacs-cnf/normalized-ii32b2.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node69/41882-1149285607/instance-41882-1149285607.opb 362237730
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node69/watcher-41882-1149285607 -o ROOT/results/node69/solver-41882-1149285607 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node69/41882-1149285607/instance-41882-1149285607.opb 362237730

MD5SUM SOLVER= ab46593c31a6a47b9d9920387a00d332
MD5SUM BENCH=  074c87f3baaaee27cf79610ce4b49729

RANDOM SEED= 362237730


/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.232
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.232
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1818932 kB
Buffers:         23008 kB
Cached:         147720 kB
SwapCached:       2468 kB
Active:          36184 kB
Inactive:       143248 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1818932 kB
SwapTotal:     4192956 kB
SwapFree:      4182216 kB
Dirty:             264 kB
Writeback:           0 kB
Mapped:          15444 kB
Slab:            43544 kB
Committed_AS:   303324 kB
PageTables:       1496 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node69 on Fri Jun  2 22:00:16 UTC 2006