Trace number 2696535

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 2010-06-29OPT2642 0.25496 0.255561

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/web/www.ps.uni-sb.de/
~walser/benchmarks/course-ass/normalized-ws97-5.opb
MD5SUMed36462db2ffa04ea65b986069441496
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark2642
Best CPU time to get the best result obtained on this benchmark0.110982
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2642
Optimality of the best value was proved YES
Number of variables907
Total number of constraints403
Number of constraints which are clauses126
Number of constraints which are cardinality constraints (but not clauses)277
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint134
Number of terms in the objective function 748
Biggest coefficient in the objective function 240
Number of bits for the biggest coefficient in the objective function 8
Sum of the numbers in the objective function 33855
Number of bits of the sum of numbers in the objective function 16
Biggest number in a constraint 240
Number of bits of the biggest number in a constraint 8
Biggest sum of numbers in a constraint 33855
Number of bits of the biggest sum of numbers16
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-2696535-1278018939.opb.
0.00/0.00	c Instance file HOME/instance-2696535-1278018939.opb
0.00/0.00	c File size is 32858 bytes.
0.00/0.21	c Highest Coefficient sum: 182
0.00/0.21	c  IBM ILOG License Manager: "IBM ILOG Optimization Suite for Academic Initiative" is accessing CPLEX 12 with option(s): "e m b q ".
0.00/0.21	c ============================[ Problem Statistics ]=============================
0.00/0.21	c |                                                                             |
0.00/0.21	c |  Parsing time:          0.21         s                                      |
0.00/0.21	c |  Number Variables:      907                                                 |
0.00/0.21	c |  Number Constraints:    403                                                 |
0.00/0.21	c ===============================================================================
0.00/0.25	c Remaining time 1799.79 sec.
0.00/0.25	s OPTIMUM FOUND
0.00/0.25	c Solution value = 2642.00
0.00/0.25	v x2 -x128 -x506 -x641 x775 -x5 x257 x509 -x6 -x132 x258 -x384 x510 -x7 -x133 x259 x511 x8 -x134 -x513 x9 -x135 -x514 x389 -x517 x12 -x138 -x518 x13 -x139 -x519 -x15 x393 x521 -x16 -x142 x268 x522 -x17 x395 x523 -x18 x144 x524 -x19 x397 x525 x20 -x526 x660 -x21 x147 x527 -x22 x274 x528 x23 -x529 x663 x24 -x150 -x530 -x25 x151 x531 -x26 -x152 x404 x532 -x27 x153 x533 -x28 x154 -x534 -x29 x407 -x535 -x30 x408 x536 x31 -x157 -x537 x32 -x158 -x538 x33 -x159 -x673 x807 -x34 -x160 x286 -x540 -x35 x161 -x541 x288 -x414 x37 -x163 -x543 -x38 x164 x544 x39 -x165 -x545 x40 -x546 -x680 x814 x41 -x167 -x547 -x42 x420 -x548 x43 -x169 -x549 -x44 x422 -x550 x45 -x171 -x551 x552 x46 -x172 -x553 x687 -x47 x173 -x554 -x48 -x174 x426 x555 -x49 -x175 x427 x556 -x50 x176 x557 x429 -x52 x178 -x559 -x53 x179 x560 x432 -x695 x829 -x55 -x181 x433 x562 -x56 x434 x563 -x57 x309 -x564 -x698 x832 -x58 x436 x565 -x59 x437 -x566 x567 -x60 x186 x568 x569 x61 -x570 -x704 x838 -x62 x188 x571 -x63 x315 -x441 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-x115 -x367 -x493 -x625 -x368 -x894 -x369 -x495 -x761 x895 -x244 -x370 -x763 -x897 -x246 -x498 -x373 -x499 -x248 -x500 -x768 -x902 -x376 -x502 -x126 -x638 -x253 -x379 -x505 -x907 x1 -x10 -x11 -x14 -x36 -x78 -x81 -x85 -x92 -x96 -x98 -x101 -x102 -x112 -x113 -x130 x136 -x140 -x141 -x145 -x162 -x168 -x200 -x204 -x210 -x211 -x222 -x224 -x231 -x233 -x238 -x240 -x245 -x249 -x250 -x251 -x252 -x254 -x255 -x256 -x263 -x264 x266 -x267 -x269 -x275 -x283 -x285 -x289 -x294 -x296 -x299 -x308 -x330 x333 x337 -x344 -x357 -x359 x364 x365 -x372 x378 -x380 x381 x382 -x383 -x386 -x392 -x394 -x396 -x398 -x402 -x409 -x411 -x415 -x419 -x425 -x442 -x452 x456 -x459 -x463 x470 -x471 x474 -x475 -x483 -x490 -x497 -x504 -x512 -x515 -x516 -x520 -x539 -x542 x587 -x594 -x602 -x606 -x608 -x611 -x612 -x622 -x623 -x630 x640 x649 -x650 x651 x652 x654 x671 x674 x677 x682 x688 x700 x709 x713 -x721 x724 x726 x735 -x736 x752 x759 x764 x769 -x770 -x774 x776 -x783 x784 -x785 -x786 -x788 -x794 -x797 -x805 -x808 -x811 -x816 -x822 -x834 -x843 -x849 -x855 -x858 -x860 -x861 -x869 x870 -x876 -x883 -x886 -x893 -x898 -x903
0.00/0.25	c Total CPU time              : 0.241963 s

Verifier Data 

OK	2642

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2696535-1278018939/watcher-2696535-1278018939 -o /tmp/evaluation-result-2696535-1278018939/solver-2696535-1278018939 -C 1800 -W 2000 -M 1800 run HOME/instance-2696535-1278018939.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: 1.93 1.93 1.70 3/106 2637
/proc/meminfo: memFree=1629948/2059040 swapFree=4192956/4192956
[pid=2637] ppid=2635 vsize=8700 CPUtime=0
/proc/2637/stat : 2637 (run) S 2635 2637 2453 0 -1 4202496 365 0 0 0 0 0 0 0 25 0 1 0 208831 8908800 249 1992294400 4194304 4922060 140735866310960 18446744073709551615 236997680261 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/2637/statm: 2175 249 208 178 0 68 0

[startup+0.092294 s]
/proc/loadavg: 1.93 1.93 1.70 3/106 2637
/proc/meminfo: memFree=1629948/2059040 swapFree=4192956/4192956
[pid=2637] ppid=2635 vsize=8700 CPUtime=0
/proc/2637/stat : 2637 (run) S 2635 2637 2453 0 -1 4202496 365 0 0 0 0 0 0 0 25 0 1 0 208831 8908800 249 1992294400 4194304 4922060 140735866310960 18446744073709551615 236997680261 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/2637/statm: 2175 249 208 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.100294 s]
/proc/loadavg: 1.93 1.93 1.70 3/106 2637
/proc/meminfo: memFree=1629948/2059040 swapFree=4192956/4192956
[pid=2637] ppid=2635 vsize=8700 CPUtime=0
/proc/2637/stat : 2637 (run) S 2635 2637 2453 0 -1 4202496 365 0 0 0 0 0 0 0 25 0 1 0 208831 8908800 249 1992294400 4194304 4922060 140735866310960 18446744073709551615 236997680261 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/2637/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

[startup+0.200298 s]
/proc/loadavg: 1.93 1.93 1.70 3/106 2637
/proc/meminfo: memFree=1629948/2059040 swapFree=4192956/4192956
[pid=2637] ppid=2635 vsize=8700 CPUtime=0
/proc/2637/stat : 2637 (run) S 2635 2637 2453 0 -1 4202496 365 0 0 0 0 0 0 0 25 0 1 0 208831 8908800 249 1992294400 4194304 4922060 140735866310960 18446744073709551615 236997680261 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/2637/statm: 2175 249 208 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

Child status: 0
Real time (s): 0.255561
CPU time (s): 0.25496
CPU user time (s): 0.243962
CPU system time (s): 0.010998
CPU usage (%): 99.7649
Max. virtual memory (cumulated for all children) (KiB): 8700

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.243962
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2086
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= 22

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node027 at 2010-07-01 23:15:39
IDJOB=2696535
IDBENCH=2231
IDSOLVER=1209
FILE ID=node027/2696535-1278018939
PBS_JOBID= 11198754
Free space on /tmp= 61856 MiB

SOLVER NAME= pb_cplex 2010-06-29
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/web/www.ps.uni-sb.de/~walser/benchmarks/course-ass/normalized-ws97-5.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2696535-1278018939/watcher-2696535-1278018939 -o /tmp/evaluation-result-2696535-1278018939/solver-2696535-1278018939 -C 1800 -W 2000 -M 1800  run HOME/instance-2696535-1278018939.opb

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

MD5SUM BENCH= ed36462db2ffa04ea65b986069441496
RANDOM SEED=433696162

node027.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		: 2800.179
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	: 5600.35
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		: 2800.179
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	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1630352 kB
Buffers:         56404 kB
Cached:         264312 kB
SwapCached:          0 kB
Active:         159540 kB
Inactive:       220336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1630352 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:           16756 kB
Writeback:           0 kB
AnonPages:       59216 kB
Mapped:          14396 kB
Slab:            26764 kB
PageTables:       4172 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   178816 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264952 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 61840 MiB
End job on node027 at 2010-07-01 23:15:39