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-par16-3-c.opb
MD5SUM9758fd8c9a8bc907d5083400c8e6642e
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 334
Optimality of the best value was proved YES
Number of terms in the objective function 668
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 668
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 668
Number of bits of the biggest sum of numbers10
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark5.02423
Number of variables668
Total number of constraints1666
Number of constraints which are clauses1666
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 constraint3

Trace number 1581

Launcher Data

LAUNCH ON wulflinc20 THE 2005-09-18 16:10:46 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=3700 boxname=wulflinc20 idbench=184 idsolver=4 numberseed=0
MD5SUM SOLVER: 21c3ffd7205c96d5f0784fd273b92938  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  9758fd8c9a8bc907d5083400c8e6642e  /oldhome/oroussel/tmp/wulflinc20/normalized-par16-3-c.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc20/normalized-par16-3-c.opb
IDLAUNCH: 3700
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.215
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		: 451.215
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        916648 kB
Buffers:         35048 kB
Cached:          54220 kB
SwapCached:        832 kB
Active:          66508 kB
Inactive:        25428 kB
HighTotal:      131008 kB
HighFree:        73444 kB
LowTotal:       903652 kB
LowFree:        843204 kB
SwapTotal:     2097892 kB
SwapFree:      2096604 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5732 kB
Slab:            20460 kB
Committed_AS:    64132 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-18 16:11:23 (client local time) WITH STATUS 30 IN 36.3335 SECONDS
stats: 3700 0 36.3335 30

Solver Data

c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc20/normalized-par16-3-c.opb ......
c The optimum solution is:334
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 -x401 x402 -x403 x404 x405 -x406 x407 -x408 -x409 x41 x410 x411 -x412 x413 -x414 -x415 x416 x417 -x418 -x419 -x42 x420 -x421 x422 x423 -x424 -x425 x426 -x427 x428 x429 -x43 -x430 -x431 x432 -x433 x434 -x435 x436 x437 -x438 -x439 x44 x440 -x441 x442 x443 -x444 -x445 x446 x447 -x448 x449 x45 -x450 -x451 x452 x453 -x454 -x455 x456 x457 -x458 x459 -x46 -x460 -x461 x462 x463 -x464 x465 -x466 -x467 x468 x469 -x47 -x470 x471 -x472 -x473 x474 x475 -x476 x477 -x478 x479 x48 -x480 -x481 x482 x483 -x484 x485 -x486 x487 -x488 -x489 x49 x490 x491 -x492 x493 -x494 -x495 x496 x497 -x498 x499 -x5 -x50 -x500 -x501 x502 x503 -x504 x505 -x506 -x507 x508 x509 -x51 -x510 -x511 x512 -x513 x514 x515 -x516 -x517 x518 x519 x52 -x520 x521 -x522 x523 -x524 -x525 x526 x527 -x528 x529 x53 -x530 -x531 x532 -x533 x534 x535 -x536 x537 -x538 -x539 -x54 x540 -x541 x542 x543 -x544 x545 -x546 x547 -x548 -x549 -x55 x550 -x551 x552 x553 -x554 -x555 x556 -x557 x558 x559 x56 -x560 x561 -x562 x563 -x564 -x565 x566 x567 -x568 -x569 x57 x570 x571 -x572 -x573 x574 x575 -x576 x577 -x578 -x579 -x58 x580 x581 -x582 x583 -x584 x585 -x586 -x587 x588 -x589 -x59 x590 x591 -x592 -x593 x594 -x595 x596 x597 -x598 x599 x6 x60 -x600 -x601 x602 x603 -x604 -x605 x606 x607 -x608 x609 x61 -x610 x611 -x612 x613 -x614 x615 -x616 -x617 x618 x619 -x62 -x620 x621 -x622 -x623 x624 -x625 x626 x627 -x628 x629 -x63 -x630 x631 -x632 -x633 x634 x635 -x636 x637 -x638 x639 x64 -x640 -x641 x642 x643 -x644 -x645 x646 -x647 x648 x649 x65 -x650 -x651 x652 -x653 x654 x655 -x656 -x657 x658 x659 -x66 -x660 -x661 x662 -x663 x664 x665 -x666 x667 -x668 -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=36.2525

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/11220/stat): 11220 (PBS4) R 11219 11220 2660 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 1842590209 978944 2 4294967295 134512640 135450776 3221224576 3221224576 134512960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/11220/statm): 239 2 232 232 0 7 0
[pid=11220] vsize: 956
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc20/normalized-par16-3-c.opb
open syscall for file /oldhome/oroussel/tmp/wulflinc20/normalized-par16-3-c.opb

[startup+10.0032 s]
Raw data (loadavg): 0.82 0.91 0.72 1/56 11220
Raw data (/proc/11220/stat): 11220 (PBS4) T 11219 11220 2660 0 -1 0 453 0 0 0 982 6 0 0 25 0 1 0 1842590209 2785280 436 4294967295 134512640 135450776 3221224576 3221223436 135126769 0 0 5 0 3222434794 0 0 17 1 0 0
Raw data (/proc/11220/statm): 680 436 232 232 0 448 0
[pid=11220] vsize: 2720
Current children cumulated CPU time (s) 9.88
Current children cumulated vsize (Kb) 2720

[startup+20.0059 s]
Raw data (loadavg): 0.85 0.92 0.72 2/56 11220
Raw data (/proc/11220/stat): 11220 (PBS4) R 11219 11220 2660 0 -1 0 731 0 0 0 1968 12 0 0 25 0 1 0 1842590209 4165632 665 4294967295 134512640 135450776 3221224576 3221223296 134538933 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/11220/statm): 1017 665 232 232 0 785 0
[pid=11220] vsize: 4068
Current children cumulated CPU time (s) 19.8
Current children cumulated vsize (Kb) 4068

[startup+30.0067 s]
Raw data (loadavg): 0.87 0.92 0.72 2/56 11220
Raw data (/proc/11220/stat): 11220 (PBS4) R 11219 11220 2660 0 -1 0 821 0 0 0 2951 18 0 0 25 0 1 0 1842590209 4444160 755 4294967295 134512640 135450776 3221224576 3221223296 134539552 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/11220/statm): 1085 755 232 232 0 853 0
[pid=11220] vsize: 4340
Current children cumulated CPU time (s) 29.69
Current children cumulated vsize (Kb) 4340
One traced child (pid=11220) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 36.7141
CPU time (s): 36.3335
CPU user time (s): 36.1065
CPU system time (s): 0.226965
CPU usage (%): 98.9633
Max. virtual memory (cumulated for all children) (Kb): 4340

Verifier Data

Verifier:	OK	334