Trace number 2695972

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
pb_cplex 2010-06-29OPT8691 0.140977 0.142109

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/
MIPLIB/miplib/normalized-mps-v2-20-10-p0548.opb
MD5SUM38a2c469f9dc1120b8fe634a693ac03d
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark8691
Best CPU time to get the best result obtained on this benchmark0.140977
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 10829
Optimality of the best value was proved NO
Number of variables548
Total number of constraints166
Number of constraints which are clauses40
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints126
Minimum length of a constraint2
Maximum length of a constraint143
Number of terms in the objective function 416
Biggest coefficient in the objective function 11000
Number of bits for the biggest coefficient in the objective function 14
Sum of the numbers in the objective function 96797
Number of bits of the sum of numbers in the objective function 17
Biggest number in a constraint 11000
Number of bits of the biggest number in a constraint 14
Biggest sum of numbers in a constraint 96797
Number of bits of the biggest sum of numbers17
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c pb_cplex 1.0 - 20100701
0.00/0.00	c Parsing opb file format. File HOME/instance-2695972-1278016564.opb.
0.00/0.00	c Instance file HOME/instance-2695972-1278016564.opb
0.00/0.00	c File size is 19885 bytes.
0.00/0.06	c Highest Coefficient sum: 21384
0.00/0.06	c  IBM ILOG License Manager: "IBM ILOG Optimization Suite for Academic Initiative" is accessing CPLEX 12 with option(s): "e m b q ".
0.00/0.06	c ============================[ Problem Statistics ]=============================
0.00/0.06	c |                                                                             |
0.00/0.06	c |  Parsing time:          0.06         s                                      |
0.00/0.06	c |  Number Variables:      548                                                 |
0.00/0.06	c |  Number Constraints:    166                                                 |
0.00/0.06	c ===============================================================================
0.00/0.14	c Remaining time 1799.94 sec.
0.00/0.14	s OPTIMUM FOUND
0.00/0.14	c Solution value = 8691.00
0.00/0.14	v -x1 -x2 x3 x4 -x5 -x8 -x10 -x11 -x12 -x13 x14 x15 -x16 -x19 -x21 -x22 -x23 x24 x25 -x26 -x29 -x30 -x31 -x32 -x33 -x34 -x35 -x38 -x40 -x41 -x42 -x43 x44 x45 -x46 -x49 -x51 -x52 -x53 -x54 -x55 -x58 -x60 -x61 x62 x63 -x64 -x66 -x67 -x68 -x69 -x70 -x72 -x73 -x74 x75 x76 -x77 -x79 -x80 -x81 x82 x83 -x84 -x87 -x89 -x90 -x91 -x92 x93 x94 -x95 -x98 -x100 -x101 -x102 -x103 -x104 -x105 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x117 -x119 -x120 x121 -x122 -x123 -x124 -x125 -x128 x130 -x131 -x132 -x133 -x134 -x137 -x139 -x140 x141 x142 -x143 -x145 -x146 -x147 -x148 -x149 -x151 -x152 -x153 x154 x155 -x156 -x158 -x159 -x160 -x161 x162 x163 -x164 -x167 -x168 -x169 -x170 -x171 -x172 -x173 -x174 -x175 -x176 -x179 -x180 -x181 -x182 x183 -x184 x185 -x186 -x187 -x188 -x191 -x192 x193 x194 x195 -x196 -x197 -x198 -x199 x200 x201 -x202 -x205 -x206 -x207 -x208 -x209 x210 -x211 -x212 -x213 -x214 x215 x216 -x217 -x218 x219 -x220 -x221 -x224 -x225 -x226 x227 -x228 -x229 -x230 -x231 -x232 -x233 -x236 -x237 -x238 -x239 x240 -x241 -x242 -x243 -x244 -x245 -x246 -x249 -x250 -x251 -x252 -x253 -x254 -x255 -x256 x257 x258 -x259 -x262 -x263 -x264 -x265 -x266 -x267 -x268 -x269 -x270 -x271 -x272 -x273 -x276 -x277 -x278 -x279 -x280 -x281 -x282 -x283 -x284 -x285 -x286 -x289 -x290 -x291 -x292 -x293 -x294 -x295 -x296 -x297 -x298 -x299 -x300 -x303 -x304 -x305 x306 x307 -x308 -x309 -x310 -x311 -x312 -x313 -x314 -x316 -x317 x318 x319 -x320 -x321 -x322 -x323 -x324 -x325 -x326 -x327 x328 -x329 -x330 x331 -x332 x333 -x334 x335 -x336 x337 -x338 -x339 -x340 -x342 -x343 -x344 -x345 -x346 -x347 x348 -x349 -x351 -x352 -x353 -x354 x355 -x356 -x357 -x358 x359 -x361 -x362 -x363 -x364 -x365 -x366 -x367 -x368 x369 x370 -x371 -x374 -x375 -x376 -x377 -x378 -x379 x380 x381 -x382 -x383 -x384 -x387 -x388 x389 x390 x391 -x392 -x393 x394 x395 -x396 -x399 -x400 -x401 x402 x403 -x404 -x405 -x406 x407 x408 -x409 -x412 -x413 -x414 -x415 -x416 -x417 x418 -x419 x420 x421 -x422 -x425 -x426 -x427 x428 x429 -x430 x431 -x432 -x433 -x434 -x435 -x436 -x437 x438 -x439 -x441 -x442 -x443 -x444 x445 -x446 x447 -x449 -x450 x451 x452 x453 -x454 -x455 -x457 -x458 -x459 -x460 -x461 -x462 -x463 -x465 -x466 -x467 -x468 -x469 -x470 -x471 -x472 -x474 -x475 -x476 x477 x478 -x479 -x480 -x482 -x483 -x484 -x485 -x486 -x487 -x488 -x490 -x491 x492 -x493 -x494 x495 -x496 -x497 -x498 -x499 -x6 x7 -x9 -x500 -x17 x18 x20 x501 -x27 x28 -x502 -x36 -x37 -x39 -x503 -x47 x48 -x50 x504 -x56 x57 -x59 -x505 -x65 -x506 -x71 -x507 -x78 -x508 x85 -x86 -x88 x509 -x96 x97 x99 x510 -x106 x107 x511 -x115 x116 -x118 x512 -x126 x127 -x129 x513 -x135 -x136 -x138 -x514 -x144 -x515 -x150 x516 -x157 -x517 -x165 x166 x518 -x177 x178 x519 -x189 x190 x520 -x203 x204 -x521 x522 -x222 x223 x523 -x234 x235 x524 -x247 x248 -x525 -x260 x261 x526 -x274 x275 x527 -x287 x288 x528 -x301 x302 x529 x315 x530 x531 x532 x341 x533 x350 x534 x360 -x535 -x372 -x373 -x536 -x385 x386 x537 -x397 x398 x538 -x410 x411 x539 -x423 x424 x540 -x541 x440 x542 x448 x543 -x456 -x544 -x464 -x545 x473 x546 x481 -x547 x489 x548
0.00/0.14	c Total CPU time              : 0.132979 s

Verifier Data 

OK	8691

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2695972-1278016564/watcher-2695972-1278016564 -o /tmp/evaluation-result-2695972-1278016564/solver-2695972-1278016564 -C 1800 -W 2000 -M 1800 run HOME/instance-2695972-1278016564.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.76 1.92 1.50 3/106 28775
/proc/meminfo: memFree=1468704/2059040 swapFree=4136140/4192956
[pid=28775] ppid=28773 vsize=8700 CPUtime=0
/proc/28775/stat : 28775 (run) S 28773 28775 28293 0 -1 4202496 365 0 0 0 0 0 0 0 20 0 1 0 142948417 8908800 249 1992294400 4194304 4922060 140735478122128 18446744073709551615 242171354245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28775/statm: 2175 249 208 178 0 68 0

[startup+0.0767581 s]
/proc/loadavg: 1.76 1.92 1.50 3/106 28775
/proc/meminfo: memFree=1468704/2059040 swapFree=4136140/4192956
[pid=28775] ppid=28773 vsize=8700 CPUtime=0
/proc/28775/stat : 28775 (run) S 28773 28775 28293 0 -1 4202496 365 0 0 0 0 0 0 0 20 0 1 0 142948417 8908800 249 1992294400 4194304 4922060 140735478122128 18446744073709551615 242171354245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28775/statm: 2175 249 208 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.100758 s]
/proc/loadavg: 1.76 1.92 1.50 3/106 28775
/proc/meminfo: memFree=1468704/2059040 swapFree=4136140/4192956
[pid=28775] ppid=28773 vsize=8700 CPUtime=0
/proc/28775/stat : 28775 (run) S 28773 28775 28293 0 -1 4202496 365 0 0 0 0 0 0 0 20 0 1 0 142948417 8908800 249 1992294400 4194304 4922060 140735478122128 18446744073709551615 242171354245 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/28775/statm: 2175 249 208 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

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

Child status: 0
Real time (s): 0.142109
CPU time (s): 0.140977
CPU user time (s): 0.133979
CPU system time (s): 0.006998
CPU usage (%): 99.2034
Max. virtual memory (cumulated for all children) (KiB): 8700

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.133979
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= 2104
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= 6
involuntary context switches= 4

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node047 at 2010-07-01 22:36:04
IDJOB=2695972
IDBENCH=1866
IDSOLVER=1209
FILE ID=node047/2695972-1278016564
PBS_JOBID= 11198718
Free space on /tmp= 62388 MiB

SOLVER NAME= pb_cplex 2010-06-29
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-p0548.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2695972-1278016564/watcher-2695972-1278016564 -o /tmp/evaluation-result-2695972-1278016564/solver-2695972-1278016564 -C 1800 -W 2000 -M 1800  run HOME/instance-2695972-1278016564.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 38a2c469f9dc1120b8fe634a693ac03d
RANDOM SEED=1796531899

node047.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.244
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.48
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		: 3000.244
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1469232 kB
Buffers:        140972 kB
Cached:         343600 kB
SwapCached:       9696 kB
Active:         239000 kB
Inactive:       258708 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1469232 kB
SwapTotal:     4192956 kB
SwapFree:      4136140 kB
Dirty:           16956 kB
Writeback:           0 kB
AnonPages:       11660 kB
Mapped:           8280 kB
Slab:            70136 kB
PageTables:       4200 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181512 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62372 MiB
End job on node047 at 2010-07-01 22:36:04