Trace number 432522

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
bsolo 3.0.17OPT3398 0.300953 0.302692

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 benchmark0.300953
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)

0.00/0.00	c bsolo beta version 3.0.17 - 27/04/2007 : 1600 GMT
0.00/0.00	c Developed by Vasco Manquinho IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file /tmp/evaluation/432522-1177944509/instance-432522-1177944509.opb
0.00/0.00	c File size is 41691 bytes.
0.00/0.01	c Highest Coefficient sum: 1.19275e+06
0.00/0.01	c Parsing was ok!!
0.00/0.01	c Total parsing time: 0.008 s
0.00/0.01	c Var: 771 Constr: 46 23/23/0 Lit: 8430 Watch. Lit: 4261
0.00/0.01	c Obj. Vars: 771 (100 % of total variables)
0.19/0.20	c Pre-processing Time: 0.199 s
0.19/0.21	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.21	c        0    640       42     8298  197     4191   17879      0      0 0.20
0.19/0.21	c Initial Lower Bound: 3372
0.19/0.21	c Initial Path Cost: 0
0.19/0.28	c      100    640      142    40762  287     4391   19667    100    401 0.25
0.19/0.28	o 7356	0.277
0.19/0.28	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.28	c      164    640      207    66062  319     5156   19159    165    589 0.28
0.19/0.28	o 3421	0.283 * 
0.19/0.29	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.29	c      164    640      208    66702  320     5796   19159    166    577 0.28
0.19/0.29	o 3398	0.288 * 
0.19/0.30	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.19/0.30	c      164    639      209    67341  322     6434   19157    167    569 0.29
0.19/0.30	v -x1 -x2 -x3 -x4 -x5 -x6 -x7 -x8 -x9 -x10 -x11 -x12 -x13 -x14 x15 -x16 -x17 -x18 -x19 -x20 -x21 -x22 -x23 -x24 -x25 -x26 -x27 -x28
0.19/0.30	v -x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54
0.19/0.30	v -x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79 -x80
0.19/0.30	v -x81 -x82 -x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 -x102 -x103 -x104
0.19/0.30	v -x105 -x106 -x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118 -x119 -x120 -x121 -x122 -x123 -x124 -x125
0.19/0.30	v -x126 -x127 -x128 -x129 -x130 -x131 -x132 -x133 -x134 -x135 -x136 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146
0.19/0.30	v -x147 -x148 -x149 -x150 -x151 -x152 -x153 -x154 -x155 -x156 x157 -x158 -x159 -x160 -x161 -x162 -x163 -x164 -x165 -x166 -x167
0.19/0.30	v -x168 -x169 -x170 -x171 -x172 -x173 -x174 -x175 -x176 -x177 -x178 -x179 -x180 -x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188
0.19/0.30	v -x189 -x190 -x191 -x192 -x193 -x194 -x195 -x196 -x197 -x198 -x199 -x200 -x201 -x202 -x203 -x204 -x205 -x206 -x207 -x208 -x209
0.19/0.30	v -x210 -x211 -x212 -x213 -x214 -x215 -x216 -x217 -x218 -x219 -x220 -x221 -x222 -x223 -x224 -x225 -x226 -x227 -x228 -x229 -x230
0.19/0.30	v -x231 -x232 -x233 -x234 -x235 -x236 -x237 -x238 -x239 -x240 -x241 -x242 -x243 -x244 -x245 -x246 -x247 -x248 -x249 -x250 -x251
0.19/0.30	v -x252 -x253 -x254 -x255 -x256 -x257 -x258 -x259 -x260 -x261 -x262 -x263 -x264 -x265 -x266 -x267 -x268 -x269 -x270 -x271 -x272
0.19/0.30	v -x273 -x274 -x275 -x276 -x277 -x278 -x279 -x280 -x281 -x282 -x283 -x284 -x285 -x286 x287 -x288 -x289 -x290 -x291 -x292 -x293
0.19/0.30	v -x294 -x295 -x296 -x297 -x298 -x299 -x300 -x301 -x302 -x303 -x304 -x305 -x306 -x307 -x308 -x309 -x310 -x311 -x312 -x313 -x314
0.19/0.30	v -x315 -x316 -x317 -x318 -x319 -x320 -x321 -x322 -x323 -x324 -x325 -x326 -x327 -x328 -x329 -x330 -x331 -x332 -x333 -x334 -x335
0.19/0.30	v -x336 -x337 -x338 -x339 -x340 -x341 -x342 -x343 -x344 -x345 -x346 -x347 -x348 -x349 -x350 -x351 -x352 -x353 -x354 -x355 -x356
0.19/0.30	v -x357 x358 -x359 -x360 -x361 -x362 -x363 -x364 -x365 -x366 -x367 -x368 -x369 -x370 -x371 -x372 -x373 -x374 -x375 -x376 -x377
0.19/0.30	v -x378 -x379 -x380 -x381 -x382 -x383 -x384 -x385 -x386 -x387 -x388 -x389 -x390 -x391 -x392 -x393 -x394 -x395 -x396 -x397 -x398
0.19/0.30	v -x399 -x400 -x401 -x402 -x403 -x404 -x405 -x406 -x407 -x408 -x409 -x410 -x411 -x412 -x413 -x414 -x415 -x416 -x417 -x418 -x419
0.19/0.30	v -x420 -x421 -x422 -x423 -x424 -x425 -x426 -x427 -x428 -x429 -x430 -x431 -x432 -x433 -x434 -x435 -x436 -x437 -x438 -x439 -x440
0.19/0.30	v -x441 -x442 -x443 -x444 -x445 -x446 -x447 -x448 -x449 -x450 -x451 -x452 -x453 -x454 -x455 -x456 -x457 -x458 -x459 -x460 -x461
0.19/0.30	v -x462 -x463 -x464 -x465 -x466 -x467 -x468 -x469 -x470 -x471 -x472 -x473 -x474 -x475 -x476 -x477 -x478 -x479 -x480 -x481 -x482
0.19/0.30	v -x483 -x484 -x485 -x486 -x487 -x488 -x489 -x490 -x491 -x492 -x493 -x494 -x495 -x496 -x497 -x498 -x499 -x500 -x501 -x502 -x503
0.19/0.30	v -x504 -x505 -x506 -x507 -x508 -x509 -x510 -x511 -x512 -x513 -x514 -x515 -x516 -x517 -x518 -x519 -x520 -x521 -x522 -x523 -x524
0.19/0.30	v -x525 -x526 -x527 -x528 -x529 -x530 -x531 -x532 -x533 -x534 -x535 -x536 -x537 -x538 -x539 -x540 -x541 -x542 -x543 -x544 -x545
0.19/0.30	v -x546 -x547 -x548 -x549 -x550 -x551 -x552 -x553 -x554 -x555 -x556 -x557 x558 -x559 -x560 -x561 -x562 -x563 -x564 -x565 -x566
0.19/0.30	v -x567 -x568 -x569 -x570 -x571 -x572 -x573 -x574 -x575 -x576 -x577 -x578 -x579 -x580 -x581 -x582 -x583 -x584 -x585 -x586 -x587
0.19/0.30	v -x588 -x589 -x590 -x591 -x592 -x593 -x594 -x595 -x596 -x597 -x598 -x599 -x600 -x601 -x602 -x603 -x604 -x605 -x606 -x607 -x608
0.19/0.30	v -x609 -x610 -x611 -x612 -x613 -x614 -x615 -x616 -x617 -x618 -x619 -x620 -x621 -x622 -x623 -x624 -x625 -x626 -x627 -x628 -x629
0.19/0.30	v -x630 -x631 -x632 -x633 -x634 -x635 -x636 -x637 -x638 -x639 -x640 -x641 -x642 -x643 -x644 -x645 -x646 -x647 -x648 -x649 -x650
0.19/0.30	v -x651 -x652 -x653 -x654 -x655 -x656 -x657 -x658 -x659 -x660 -x661 -x662 -x663 -x664 -x665 -x666 -x667 -x668 -x669 -x670 -x671
0.19/0.30	v -x672 -x673 -x674 -x675 -x676 -x677 -x678 -x679 -x680 -x681 -x682 -x683 -x684 -x685 -x686 -x687 -x688 -x689 -x690 -x691 -x692
0.19/0.30	v -x693 -x694 -x695 -x696 -x697 -x698 -x699 -x700 -x701 -x702 -x703 -x704 -x705 -x706 -x707 -x708 -x709 -x710 -x711 -x712 -x713
0.19/0.30	v -x714 -x715 -x716 -x717 -x718 -x719 -x720 -x721 -x722 -x723 -x724 -x725 -x726 -x727 -x728 -x729 -x730 -x731 -x732 -x733 -x734
0.19/0.30	v -x735 -x736 -x737 -x738 -x739 -x740 -x741 -x742 -x743 -x744 -x745 -x746 -x747 -x748 -x749 -x750 -x751 -x752 -x753 -x754 -x755
0.19/0.30	v -x756 -x757 -x758 -x759 -x760 -x761 -x762 -x763 -x764 -x765 -x766 -x767 -x768 -x769 -x770 -x771
0.19/0.30	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.19/0.30	c    4      167     90     1626      215    67379    173    564 0.30
0.19/0.30	c Objective: 3398
0.19/0.30	s OPTIMUM FOUND
0.19/0.30	c Total time: 0.296 s

Verifier Data (download as text)

OK	3398

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node18/watcher-432522-1177944509 -o ROOT/results/node18/solver-432522-1177944509 -C 1800 -W 3600 -M 1800 --output-limit 1,15 bsolo3.0.17 -m1800 /tmp/evaluation/432522-1177944509/instance-432522-1177944509.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.97 0.79 3/77 3143
/proc/meminfo: memFree=1700872/2055920 swapFree=4147184/4192956
[pid=3143] ppid=3141 vsize=11780 CPUtime=0
/proc/3143/stat : 3143 (bsolo3.0.17) R 3141 3143 2742 0 -1 4194304 363 0 0 0 0 0 0 0 18 0 1 0 242368259 12062720 333 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3143/statm: 2945 333 279 324 0 2004 0

[startup+0.0967539 s]
/proc/loadavg: 0.92 0.97 0.79 3/77 3143
/proc/meminfo: memFree=1700872/2055920 swapFree=4147184/4192956
[pid=3143] ppid=3141 vsize=12140 CPUtime=0.09
/proc/3143/stat : 3143 (bsolo3.0.17) R 3141 3143 2742 0 -1 4194304 481 0 0 0 9 0 0 0 18 0 1 0 242368259 12431360 440 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3143/statm: 3035 440 303 324 0 2105 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12140

[startup+0.101754 s]
/proc/loadavg: 0.92 0.97 0.79 3/77 3143
/proc/meminfo: memFree=1700872/2055920 swapFree=4147184/4192956
[pid=3143] ppid=3141 vsize=12140 CPUtime=0.09
/proc/3143/stat : 3143 (bsolo3.0.17) R 3141 3143 2742 0 -1 4194304 481 0 0 0 9 0 0 0 18 0 1 0 242368259 12431360 440 18446744073709551615 134512640 135840783 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/3143/statm: 3035 440 303 324 0 2105 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12140

[startup+0.301774 s]
/proc/loadavg: 0.92 0.97 0.79 3/77 3143
/proc/meminfo: memFree=1700872/2055920 swapFree=4147184/4192956
[pid=3143] ppid=3141 vsize=0 CPUtime=0.29
/proc/3143/stat : 3143 (bsolo3.0.17) D 3141 3143 2742 0 -1 4194308 1245 0 0 0 29 0 0 0 20 0 1 0 242368259 0 0 18446744073709551615 0 0 0 0 0 0 2147483391 4096 16384 18446744072099781622 0 0 17 1 0 0
/proc/3143/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 0

Solver just ended. Dumping a history of the last processes samples

Child status: 0
Real time (s): 0.302692
CPU time (s): 0.300953
CPU user time (s): 0.293955
CPU system time (s): 0.006998
CPU usage (%): 99.4255
Max. virtual memory (cumulated for all children) (KiB): 12140

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.293955
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1245
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 12
involuntary context switches= 0

runsolver used 0.005999 second user time and 0.001999 second system time

The end

Launcher Data (download as text)

Begin job on node18 on Mon Apr 30 14:48:29 UTC 2007

IDJOB= 432522
IDBENCH= 1509
IDSOLVER= 199
FILE ID= node18/432522-1177944509

PBS_JOBID= 4727671

Free space on /tmp= 66558 MiB

SOLVER NAME= bsolo 3.0.17
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= bsolo3.0.17 -m1800 /tmp/evaluation/432522-1177944509/instance-432522-1177944509.opb            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-432522-1177944509 -o ROOT/results/node18/solver-432522-1177944509 -C 1800 -W 3600 -M 1800 --output-limit 1,15  bsolo3.0.17 -m1800 /tmp/evaluation/432522-1177944509/instance-432522-1177944509.opb            

META MD5SUM SOLVER= c9b15312c639dd71a11a1e3ca1b27020
MD5SUM BENCH=  680b4f0ee3d8470777b24d39af4c8ca0

RANDOM SEED= 953698840

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node18.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.234
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		: 3000.234
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:       1701216 kB
Buffers:         40040 kB
Cached:         219680 kB
SwapCached:      14456 kB
Active:         109560 kB
Inactive:       173188 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1701216 kB
SwapTotal:     4192956 kB
SwapFree:      4147184 kB
Dirty:            6772 kB
Writeback:           0 kB
Mapped:          30096 kB
Slab:            57440 kB
Committed_AS:  5535344 kB
PageTables:       1776 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66558 MiB

End job on node18 on Mon Apr 30 14:48:29 UTC 2007