Trace number 41187

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 4.1LOPT3398 19.2211 19.233

General information on the benchmark

Namenormalized-PB06/OPT-MEDINT/mps-v2-20-10/MIPLIB/
miplib/normalized-mps-v2-20-10-air01.opb
MD5SUM680b4f0ee3d8470777b24d39af4c8ca0
Bench CategoryOPT-MEDINT (optimisation, medium integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3398
Best CPU time to get the best result obtained on this benchmark0.042993
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3398
Optimality of the best value was proved YES
Number of variables771
Total number of constraints23
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)23
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint26
Maximum length of a constraint438
Number of terms in the objective function 771
Biggest coefficient in the objective function 3698
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 1192753
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 3698
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 1192753
Number of bits of the biggest sum of numbers21
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/node23/41187-1149322462/instance-41187-1149322462.opb ......
0.03	c done parsing opb.
0.03	o 7479
0.03	o 7085
0.03	o 7060
0.03	o 4909
0.03	o 4787
0.04	o 4614
1.72	o 4134
1.77	o 4072
1.83	o 3871
2.06	o 3704
3.84	o 3622
4.04	o 3620
4.97	o 3595
4.98	o 3555
5.02	o 3547
6.24	o 3538
6.37	o 3488
7.12	o 3465
10.61	o 3446
11.34	o 3440
12.30	o 3421
13.58	o 3398
19.22	o 3398
19.22	s OPTIMUM FOUND
19.22	c Total Run Time					19.1931
19.23	v -x1 -x10 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 -x109 -x11 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117
19.23	v -x118 -x119 -x12 -x120 -x121 -x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x13 -x130 -x131 -x132 -x133 -x134 -x135 -x136
19.23	v -x137 -x138 -x139 -x14 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 x15 -x150 -x151 -x152 -x153 -x154 -x155
19.23	v -x156 x157 -x158 -x159 -x16 -x160 -x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169 -x17 -x170 -x171 -x172 -x173 -x174
19.23	v -x175 -x176 -x177 -x178 -x179 -x18 -x180 -x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188 -x189 -x19 -x190 -x191 -x192 -x193
19.23	v -x194 -x195 -x196 -x197 -x198 -x199 -x2 -x20 -x200 -x201 -x202 -x203 -x204 -x205 -x206 -x207 -x208 -x209 -x21 -x210 -x211
19.23	v -x212 -x213 -x214 -x215 -x216 -x217 -x218 -x219 -x22 -x220 -x221 -x222 -x223 -x224 -x225 -x226 -x227 -x228 -x229 -x23 -x230
19.23	v -x231 -x232 -x233 -x234 -x235 -x236 -x237 -x238 -x239 -x24 -x240 -x241 -x242 -x243 -x244 -x245 -x246 -x247 -x248 -x249 -x25
19.23	v -x250 -x251 -x252 -x253 -x254 -x255 -x256 -x257 -x258 -x259 -x26 -x260 -x261 -x262 -x263 -x264 -x265 -x266 -x267 -x268 -x269
19.23	v -x27 -x270 -x271 -x272 -x273 -x274 -x275 -x276 -x277 -x278 -x279 -x28 -x280 -x281 -x282 -x283 -x284 -x285 -x286 x287 -x288
19.23	v -x289 -x29 -x290 -x291 -x292 -x293 -x294 -x295 -x296 -x297 -x298 -x299 -x3 -x30 -x300 -x301 -x302 -x303 -x304 -x305 -x306
19.23	v -x307 -x308 -x309 -x31 -x310 -x311 -x312 -x313 -x314 -x315 -x316 -x317 -x318 -x319 -x32 -x320 -x321 -x322 -x323 -x324 -x325
19.23	v -x326 -x327 -x328 -x329 -x33 -x330 -x331 -x332 -x333 -x334 -x335 -x336 -x337 -x338 -x339 -x34 -x340 -x341 -x342 -x343 -x344
19.23	v -x345 -x346 -x347 -x348 -x349 -x35 -x350 -x351 -x352 -x353 -x354 -x355 -x356 -x357 x358 -x359 -x36 -x360 -x361 -x362 -x363
19.23	v -x364 -x365 -x366 -x367 -x368 -x369 -x37 -x370 -x371 -x372 -x373 -x374 -x375 -x376 -x377 -x378 -x379 -x38 -x380 -x381 -x382
19.23	v -x383 -x384 -x385 -x386 -x387 -x388 -x389 x39 -x390 -x391 -x392 -x393 -x394 -x395 -x396 -x397 -x398 -x399 -x4 -x40 -x400 -x401
19.23	v -x402 -x403 -x404 -x405 -x406 -x407 -x408 -x409 -x41 -x410 -x411 -x412 -x413 -x414 -x415 -x416 -x417 -x418 -x419 -x42 -x420
19.23	v -x421 -x422 -x423 -x424 -x425 -x426 -x427 -x428 -x429 -x43 -x430 -x431 -x432 -x433 -x434 -x435 -x436 -x437 -x438 -x439 -x44
19.23	v -x440 -x441 -x442 -x443 -x444 -x445 -x446 -x447 -x448 -x449 -x45 -x450 -x451 -x452 -x453 -x454 -x455 -x456 -x457 -x458 -x459
19.23	v -x46 -x460 -x461 -x462 -x463 -x464 -x465 -x466 -x467 -x468 -x469 -x47 -x470 -x471 -x472 -x473 -x474 -x475 -x476 -x477 -x478
19.23	v -x479 -x48 -x480 -x481 -x482 -x483 -x484 -x485 -x486 -x487 -x488 -x489 -x49 -x490 -x491 -x492 -x493 -x494 -x495 -x496 -x497
19.23	v -x498 -x499 -x5 -x50 -x500 -x501 -x502 -x503 -x504 -x505 -x506 -x507 -x508 -x509 -x51 -x510 -x511 -x512 -x513 -x514 -x515
19.23	v -x516 -x517 -x518 -x519 -x52 -x520 -x521 -x522 -x523 -x524 -x525 -x526 -x527 -x528 -x529 -x53 -x530 -x531 -x532 -x533 -x534
19.23	v -x535 -x536 -x537 -x538 -x539 -x54 -x540 -x541 -x542 -x543 -x544 -x545 -x546 -x547 -x548 -x549 -x55 -x550 -x551 -x552 -x553
19.23	v -x554 -x555 -x556 -x557 x558 -x559 -x56 -x560 -x561 -x562 -x563 -x564 -x565 -x566 -x567 -x568 -x569 -x57 -x570 -x571 -x572
19.23	v -x573 -x574 -x575 -x576 -x577 -x578 -x579 -x58 -x580 -x581 -x582 -x583 -x584 -x585 -x586 -x587 -x588 -x589 -x59 -x590 -x591
19.23	v -x592 -x593 -x594 -x595 -x596 -x597 -x598 -x599 -x6 -x60 -x600 -x601 -x602 -x603 -x604 -x605 -x606 -x607 -x608 -x609 -x61
19.23	v -x610 -x611 -x612 -x613 -x614 -x615 -x616 -x617 -x618 -x619 -x62 -x620 -x621 -x622 -x623 -x624 -x625 -x626 -x627 -x628 -x629
19.23	v -x63 -x630 -x631 -x632 -x633 -x634 -x635 -x636 -x637 -x638 -x639 -x64 -x640 -x641 -x642 -x643 -x644 -x645 -x646 -x647 -x648
19.23	v -x649 -x65 -x650 -x651 -x652 -x653 -x654 -x655 -x656 -x657 -x658 -x659 -x66 -x660 -x661 -x662 -x663 -x664 -x665 -x666 -x667
19.23	v -x668 -x669 -x67 -x670 -x671 -x672 -x673 -x674 -x675 -x676 -x677 -x678 -x679 -x68 -x680 -x681 -x682 -x683 -x684 -x685 -x686
19.23	v -x687 -x688 -x689 -x69 -x690 -x691 -x692 -x693 -x694 -x695 -x696 -x697 -x698 -x699 -x7 -x70 -x700 -x701 -x702 -x703 -x704
19.23	v -x705 -x706 -x707 -x708 -x709 -x71 -x710 -x711 -x712 -x713 -x714 -x715 -x716 -x717 -x718 -x719 -x72 -x720 -x721 -x722 -x723
19.23	v -x724 -x725 -x726 -x727 -x728 -x729 -x73 -x730 -x731 -x732 -x733 -x734 -x735 -x736 -x737 -x738 -x739 -x74 -x740 -x741 -x742
19.23	v -x743 -x744 -x745 -x746 -x747 -x748 -x749 -x75 -x750 -x751 -x752 -x753 -x754 -x755 -x756 -x757 -x758 -x759 -x76 -x760 -x761
19.23	v -x762 -x763 -x764 -x765 -x766 -x767 -x768 -x769 -x77 -x770 -x771 -x78 -x79 -x8 -x80 -x81 -x82 -x83 -x84 -x85 -x86 -x87 -x88
19.23	v -x89 -x9 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99

Verifier Data (download as text)

OK	3398

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/node23/watcher-41187-1149322462 -o ROOT/results/node23/solver-41187-1149322462 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node23/41187-1149322462/instance-41187-1149322462.opb 43602789 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.81 0.84 0.88 2/64 23469
/proc/meminfo: memFree=1832584/2055920 swapFree=4180884/4192956
[pid=23469] ppid=23467 vsize=1368 CPUtime=0
/proc/23469/stat : 23469 (PBS4L) R 23467 23469 23423 0 -1 4194304 111 0 0 0 0 0 0 0 19 0 1 0 197909855 1400832 95 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 135132864 0 0 4096 0 0 0 0 17 1 0 0
/proc/23469/statm: 342 95 84 232 0 107 0

[startup+10.0021 s]
/proc/loadavg: 0.84 0.85 0.88 2/64 23469
/proc/meminfo: memFree=1828504/2055920 swapFree=4180884/4192956
[pid=23469] ppid=23467 vsize=6328 CPUtime=9.98
/proc/23469/stat : 23469 (PBS4L) R 23467 23469 23423 0 -1 4194304 1151 0 0 0 997 1 0 0 25 0 1 0 197909855 6479872 1122 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134549242 0 0 4096 0 0 0 0 17 1 0 0
/proc/23469/statm: 1582 1122 108 232 0 1347 0
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 6328

Child status: 0
Real time (s): 19.233
CPU time (s): 19.2211
CPU user time (s): 19.1901
CPU system time (s): 0.030995
CPU usage (%): 99.9378
Max. virtual memory (cumulated for all children) (Kb): 6328

Launcher Data (download as text)

Begin job on node23 on Sat Jun  3 08:14:22 UTC 2006


FILE ID= 41187-1149322462

PBS_JOBID= 309423

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-MEDINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-air01.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node23/41187-1149322462/instance-41187-1149322462.opb 43602789
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node23/watcher-41187-1149322462 -o ROOT/results/node23/solver-41187-1149322462 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node23/41187-1149322462/instance-41187-1149322462.opb 43602789

MD5SUM SOLVER= ab46593c31a6a47b9d9920387a00d332
MD5SUM BENCH=  680b4f0ee3d8470777b24d39af4c8ca0

RANDOM SEED= 43602789


/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		: 3000.213
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	: 5931.00
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		: 3000.213
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:       1832856 kB
Buffers:          1196 kB
Cached:         161924 kB
SwapCached:       3412 kB
Active:          30768 kB
Inactive:       140696 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1832856 kB
SwapTotal:     4192956 kB
SwapFree:      4180884 kB
Dirty:             288 kB
Writeback:           0 kB
Mapped:          14696 kB
Slab:            37680 kB
Committed_AS:   323232 kB
PageTables:       1424 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node23 on Sat Jun  3 08:14:41 UTC 2006