Trace number 41423

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 4.1LOPT1496 21.0028 21.0142

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/
MIPLIB/miplib/normalized-reduced-mps-v2-20-10-air01.opb
MD5SUM68d64078750ebeea40444abb8e9568e3
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark1496
Best CPU time to get the best result obtained on this benchmark0.029994
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1496
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 1626
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 524677
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 1626
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 524677
Number of bits of the biggest sum of numbers20
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/node11/41423-1149348790/instance-41423-1149348790.opb ......
0.03	c done parsing opb.
0.03	o 3292
0.03	o 3119
0.03	o 3109
0.03	o 2161
0.06	o 2032
0.06	o 1806
0.18	o 1709
0.21	o 1705
0.34	o 1631
0.58	o 1595
2.88	o 1562
3.42	o 1559
5.74	o 1536
5.91	o 1526
14.67	o 1506
16.73	o 1496
21.01	o 1496
21.01	s OPTIMUM FOUND
21.01	c Total Run Time					20.9738
21.01	v -x1 -x10 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 -x109 -x11 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117
21.01	v -x118 -x119 -x12 -x120 -x121 -x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x13 -x130 -x131 -x132 -x133 -x134 -x135 -x136
21.01	v -x137 -x138 -x139 -x14 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 x15 -x150 -x151 -x152 -x153 -x154 -x155
21.01	v -x156 x157 -x158 -x159 -x16 -x160 -x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169 -x17 -x170 -x171 -x172 -x173 -x174
21.01	v -x175 -x176 -x177 -x178 -x179 -x18 -x180 -x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188 -x189 -x19 -x190 -x191 -x192 -x193
21.01	v -x194 -x195 -x196 -x197 -x198 -x199 -x2 -x20 -x200 -x201 -x202 -x203 -x204 -x205 -x206 -x207 -x208 -x209 -x21 -x210 -x211
21.01	v -x212 -x213 -x214 -x215 -x216 -x217 -x218 -x219 -x22 -x220 -x221 -x222 -x223 -x224 -x225 -x226 -x227 -x228 -x229 -x23 -x230
21.01	v -x231 -x232 -x233 -x234 -x235 -x236 -x237 -x238 -x239 -x24 -x240 -x241 -x242 -x243 -x244 -x245 -x246 -x247 -x248 -x249 -x25
21.01	v -x250 -x251 -x252 -x253 -x254 -x255 -x256 -x257 -x258 -x259 -x26 -x260 -x261 -x262 -x263 -x264 -x265 -x266 -x267 -x268 -x269
21.01	v -x27 -x270 -x271 -x272 -x273 -x274 -x275 -x276 -x277 -x278 -x279 -x28 -x280 -x281 -x282 -x283 -x284 -x285 -x286 x287 -x288
21.01	v -x289 -x29 -x290 -x291 -x292 -x293 -x294 -x295 -x296 -x297 -x298 -x299 -x3 -x30 -x300 -x301 -x302 -x303 -x304 -x305 -x306
21.01	v -x307 -x308 -x309 -x31 -x310 -x311 -x312 -x313 -x314 -x315 -x316 -x317 -x318 -x319 -x32 -x320 -x321 -x322 -x323 -x324 -x325
21.01	v -x326 -x327 -x328 -x329 -x33 -x330 -x331 -x332 -x333 -x334 -x335 -x336 -x337 -x338 -x339 -x34 -x340 -x341 -x342 -x343 -x344
21.01	v -x345 -x346 -x347 -x348 -x349 -x35 -x350 -x351 -x352 -x353 -x354 -x355 -x356 -x357 x358 -x359 -x36 -x360 -x361 -x362 -x363
21.01	v -x364 -x365 -x366 -x367 -x368 -x369 -x37 -x370 -x371 -x372 -x373 -x374 -x375 -x376 -x377 -x378 -x379 -x38 -x380 -x381 -x382
21.01	v -x383 -x384 -x385 -x386 -x387 -x388 -x389 x39 -x390 -x391 -x392 -x393 -x394 -x395 -x396 -x397 -x398 -x399 -x4 -x40 -x400 -x401
21.01	v -x402 -x403 -x404 -x405 -x406 -x407 -x408 -x409 -x41 -x410 -x411 -x412 -x413 -x414 -x415 -x416 -x417 -x418 -x419 -x42 -x420
21.01	v -x421 -x422 -x423 -x424 -x425 -x426 -x427 -x428 -x429 -x43 -x430 -x431 -x432 -x433 -x434 -x435 -x436 -x437 -x438 -x439 -x44
21.01	v -x440 -x441 -x442 -x443 -x444 -x445 -x446 -x447 -x448 -x449 -x45 -x450 -x451 -x452 -x453 -x454 -x455 -x456 -x457 -x458 -x459
21.01	v -x46 -x460 -x461 -x462 -x463 -x464 -x465 -x466 -x467 -x468 -x469 -x47 -x470 -x471 -x472 -x473 -x474 -x475 -x476 -x477 -x478
21.01	v -x479 -x48 -x480 -x481 -x482 -x483 -x484 -x485 -x486 -x487 -x488 -x489 -x49 -x490 -x491 -x492 -x493 -x494 -x495 -x496 -x497
21.01	v -x498 -x499 -x5 -x50 -x500 -x501 -x502 -x503 -x504 -x505 -x506 -x507 -x508 -x509 -x51 -x510 -x511 -x512 -x513 -x514 -x515
21.01	v -x516 -x517 -x518 -x519 -x52 -x520 -x521 -x522 -x523 -x524 -x525 -x526 -x527 -x528 -x529 -x53 -x530 -x531 -x532 -x533 -x534
21.01	v -x535 -x536 -x537 -x538 -x539 -x54 -x540 -x541 -x542 -x543 -x544 -x545 -x546 -x547 -x548 -x549 -x55 -x550 -x551 -x552 -x553
21.01	v -x554 -x555 -x556 -x557 x558 -x559 -x56 -x560 -x561 -x562 -x563 -x564 -x565 -x566 -x567 -x568 -x569 -x57 -x570 -x571 -x572
21.01	v -x573 -x574 -x575 -x576 -x577 -x578 -x579 -x58 -x580 -x581 -x582 -x583 -x584 -x585 -x586 -x587 -x588 -x589 -x59 -x590 -x591
21.01	v -x592 -x593 -x594 -x595 -x596 -x597 -x598 -x599 -x6 -x60 -x600 -x601 -x602 -x603 -x604 -x605 -x606 -x607 -x608 -x609 -x61
21.01	v -x610 -x611 -x612 -x613 -x614 -x615 -x616 -x617 -x618 -x619 -x62 -x620 -x621 -x622 -x623 -x624 -x625 -x626 -x627 -x628 -x629
21.01	v -x63 -x630 -x631 -x632 -x633 -x634 -x635 -x636 -x637 -x638 -x639 -x64 -x640 -x641 -x642 -x643 -x644 -x645 -x646 -x647 -x648
21.01	v -x649 -x65 -x650 -x651 -x652 -x653 -x654 -x655 -x656 -x657 -x658 -x659 -x66 -x660 -x661 -x662 -x663 -x664 -x665 -x666 -x667
21.01	v -x668 -x669 -x67 -x670 -x671 -x672 -x673 -x674 -x675 -x676 -x677 -x678 -x679 -x68 -x680 -x681 -x682 -x683 -x684 -x685 -x686
21.01	v -x687 -x688 -x689 -x69 -x690 -x691 -x692 -x693 -x694 -x695 -x696 -x697 -x698 -x699 -x7 -x70 -x700 -x701 -x702 -x703 -x704
21.01	v -x705 -x706 -x707 -x708 -x709 -x71 -x710 -x711 -x712 -x713 -x714 -x715 -x716 -x717 -x718 -x719 -x72 -x720 -x721 -x722 -x723
21.01	v -x724 -x725 -x726 -x727 -x728 -x729 -x73 -x730 -x731 -x732 -x733 -x734 -x735 -x736 -x737 -x738 -x739 -x74 -x740 -x741 -x742
21.01	v -x743 -x744 -x745 -x746 -x747 -x748 -x749 -x75 -x750 -x751 -x752 -x753 -x754 -x755 -x756 -x757 -x758 -x759 -x76 -x760 -x761
21.01	v -x762 -x763 -x764 -x765 -x766 -x767 -x768 -x769 -x77 -x770 -x771 -x78 -x79 -x8 -x80 -x81 -x82 -x83 -x84 -x85 -x86 -x87 -x88
21.01	v -x89 -x9 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99

Verifier Data (download as text)

OK	1496

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/node11/watcher-41423-1149348790 -o ROOT/results/node11/solver-41423-1149348790 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node11/41423-1149348790/instance-41423-1149348790.opb 492846919 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.87 0.97 0.99 2/64 7131
/proc/meminfo: memFree=1600704/2055920 swapFree=4181380/4192956
[pid=7131] ppid=7129 vsize=1400 CPUtime=0
/proc/7131/stat : 7131 (PBS4L) R 7129 7131 7085 0 -1 4194304 166 0 0 0 0 0 0 0 18 0 1 0 200541552 1433600 145 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134684881 0 0 4096 0 0 0 0 17 1 0 0
/proc/7131/statm: 350 145 97 232 0 115 0

[startup+10.0021 s]
/proc/loadavg: 0.89 0.97 0.99 2/64 7131
/proc/meminfo: memFree=1595856/2055920 swapFree=4181380/4192956
[pid=7131] ppid=7129 vsize=6468 CPUtime=9.98
/proc/7131/stat : 7131 (PBS4L) R 7129 7131 7085 0 -1 4194304 1347 0 0 0 996 2 0 0 25 0 1 0 200541552 6623232 1318 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 135140097 0 0 4096 0 0 0 0 17 1 0 0
/proc/7131/statm: 1617 1318 108 232 0 1382 0
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 6468

[startup+20.0083 s]
/proc/loadavg: 0.91 0.97 0.99 2/64 7131
/proc/meminfo: memFree=1595088/2055920 swapFree=4181380/4192956
[pid=7131] ppid=7129 vsize=6596 CPUtime=19.99
/proc/7131/stat : 7131 (PBS4L) R 7129 7131 7085 0 -1 4194304 1546 0 0 0 1995 4 0 0 25 0 1 0 200541552 6754304 1517 18446744073709551615 134512640 135466232 4294956672 18446744073709551615 134549239 0 0 4096 0 0 0 0 17 1 0 0
/proc/7131/statm: 1649 1517 108 232 0 1414 0
Current children cumulated CPU time (s) 19.99
Current children cumulated vsize (Kb) 6596

Child status: 0
Real time (s): 21.0142
CPU time (s): 21.0028
CPU user time (s): 20.9578
CPU system time (s): 0.044993
CPU usage (%): 99.9458
Max. virtual memory (cumulated for all children) (Kb): 6596

Launcher Data (download as text)

Begin job on node11 on Sat Jun  3 15:33:10 UTC 2006


FILE ID= 41423-1149348790

PBS_JOBID= 310860

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/MIPLIB/miplib/normalized-reduced-mps-v2-20-10-air01.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node11/41423-1149348790/instance-41423-1149348790.opb 492846919
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-41423-1149348790 -o ROOT/results/node11/solver-41423-1149348790 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user11/PBS4L ROOT/tmp/node11/41423-1149348790/instance-41423-1149348790.opb 492846919

MD5SUM SOLVER= ab46593c31a6a47b9d9920387a00d332
MD5SUM BENCH=  68d64078750ebeea40444abb8e9568e3

RANDOM SEED= 492846919


/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		: 3000.222
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		: 3000.222
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:       1600912 kB
Buffers:         21320 kB
Cached:         365740 kB
SwapCached:       3260 kB
Active:          56476 kB
Inactive:       339304 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1600912 kB
SwapTotal:     4192956 kB
SwapFree:      4181380 kB
Dirty:             200 kB
Writeback:           0 kB
Mapped:          14740 kB
Slab:            45156 kB
Committed_AS:   378488 kB
PageTables:       1484 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node11 on Sat Jun  3 15:33:31 UTC 2006