Trace number 2702405

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
wbo 1.4b (fixed)OPT2 0.12798 0.127165

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mds/normalized-mds_50_25_4.opb
MD5SUMa45f8d339393416b6aacc4f79e0ac23e
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark2
Best CPU time to get the best result obtained on this benchmark1.18582
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2
Optimality of the best value was proved YES
Number of variables50
Total number of constraints50
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints50
Minimum length of a constraint26
Maximum length of a constraint38
Number of terms in the objective function 50
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 50
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 50
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)1466
Sum of products size (including duplicates)2932
Number of different products1466
Sum of products size2932

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data 

0.00/0.00	c wbo 1.4 beta - 20100610
0.00/0.00	c Parsing opb file format. File HOME/instance-2702405-1278566356.opb.
0.00/0.00	c Instance file HOME/instance-2702405-1278566356.opb
0.00/0.00	c File size is 102553 bytes.
0.00/0.02	c Highest Coefficient sum: 39
0.00/0.02	c ============================[ Problem Statistics ]=============================
0.00/0.02	c |                                                                             |
0.00/0.02	c |  Parsing time:          0.02         s                                      |
0.00/0.02	c |  Number Variables:      1516                                                |
0.00/0.02	c |  Number Clauses:        1516                                                |
0.00/0.02	c |  Number Cardinality:    0                                                   |
0.00/0.02	c |  Number PB Constraints: 1466                                                |
0.00/0.02	c ============================[ Search Statistics ]==============================
0.00/0.02	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.02	c |           |    Vars     Ctrs     Lits |    Limit  Clauses Lit/Cl |          |
0.00/0.02	c ===============================================================================
0.00/0.02	c |         0 |    1516     2982    10312 |     5000        0    nan |  0.000 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c New solution: 49
0.00/0.02	o 49
0.00/0.02	c Elapsed CPU time: 0.021996 s	Remaining CPU time: 179.978 s
0.00/0.02	c ===============================================================================
0.00/0.02	c |         0 |    1516     2983    10362 |     5000        0    nan |  0.000 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c New solution: 12
0.00/0.02	o 12
0.00/0.02	c Elapsed CPU time: 0.022996 s	Remaining CPU time: 179.977 s
0.00/0.02	c ===============================================================================
0.00/0.02	c |         0 |    1516     2984    10412 |     5000        0    nan |  0.000 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c New solution: 11
0.00/0.02	o 11
0.00/0.02	c Elapsed CPU time: 0.022996 s	Remaining CPU time: 179.977 s
0.00/0.02	c ===============================================================================
0.00/0.02	c |         0 |    1516     2985    10462 |     5000        0    nan |  0.000 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c New solution: 10
0.00/0.02	o 10
0.00/0.02	c Elapsed CPU time: 0.023996 s	Remaining CPU time: 179.976 s
0.00/0.02	c ===============================================================================
0.00/0.02	c |         0 |    1516     2986    10512 |     5000        0    nan |  0.000 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c New solution: 9
0.00/0.02	o 9
0.00/0.02	c Elapsed CPU time: 0.025996 s	Remaining CPU time: 179.974 s
0.00/0.02	c ===============================================================================
0.00/0.02	c |         0 |    1516     2987    10562 |     5000        0    nan |  0.000 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c New solution: 8
0.00/0.02	o 8
0.00/0.02	c Elapsed CPU time: 0.026995 s	Remaining CPU time: 179.973 s
0.00/0.02	c ===============================================================================
0.00/0.02	c |         1 |    1516     2988    10612 |     5000        1      9 |  0.000 % |
0.00/0.03	c ===============================================================================
0.00/0.03	c New solution: 3
0.00/0.03	o 3
0.00/0.03	c Elapsed CPU time: 0.027995 s	Remaining CPU time: 179.972 s
0.00/0.03	c ===============================================================================
0.00/0.03	c |         1 |    1516     2989    10662 |     5000        1      9 |  0.000 % |
0.03/0.04	c |       103 |    1516     2989    10662 |     5500      103    103 |  0.001 % |
0.03/0.06	c |       257 |    1516     2989    10662 |     6050      257    107 |  0.000 % |
0.09/0.10	c |       482 |    1516     2989    10662 |     6655      482    114 |  0.000 % |
0.09/0.11	c ===============================================================================
0.09/0.11	c New solution: 2
0.09/0.11	o 2
0.09/0.11	c Elapsed CPU time: 0.111982 s	Remaining CPU time: 179.888 s
0.09/0.11	c ===============================================================================
0.09/0.11	c |       527 |    1516     2990    10712 |     5000      527    110 |  0.000 % |
0.09/0.12	c ===============================================================================
0.09/0.12	c Best Solution: 2
0.09/0.12	s OPTIMUM FOUND
0.09/0.12	c Total CPU time: 0.122981 s
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Verifier Data 

OK	2

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2702405-1278566356/watcher-2702405-1278566356 -o /tmp/evaluation-result-2702405-1278566356/solver-2702405-1278566356 -C 1800 -W 2000 -M 1800 wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2702405-1278566356.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: 0.92 0.99 0.83 3/106 2505
/proc/meminfo: memFree=1831080/2059040 swapFree=4192956/4192956
[pid=2505] ppid=2503 vsize=2844 CPUtime=0
/proc/2505/stat : 2505 (wbo1.4b) R 2503 2505 2340 0 -1 4202496 326 0 0 0 0 0 0 0 18 0 1 0 186714 2912256 245 1992294400 134512640 135752675 4289866992 18446744073709551615 135207291 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/2505/statm: 711 246 141 303 0 380 0

[startup+0.0364 s]
/proc/loadavg: 0.92 0.99 0.83 3/106 2505
/proc/meminfo: memFree=1831080/2059040 swapFree=4192956/4192956
[pid=2505] ppid=2503 vsize=3076 CPUtime=0.03
/proc/2505/stat : 2505 (wbo1.4b) R 2503 2505 2340 0 -1 4202496 475 0 0 0 3 0 0 0 20 0 1 0 186714 3149824 349 1992294400 134512640 135752675 4289866992 18446744073709551615 135271249 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/2505/statm: 769 349 144 303 0 464 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3076

[startup+0.101407 s]
/proc/loadavg: 0.92 0.99 0.83 3/106 2505
/proc/meminfo: memFree=1831080/2059040 swapFree=4192956/4192956
[pid=2505] ppid=2503 vsize=3340 CPUtime=0.09
/proc/2505/stat : 2505 (wbo1.4b) R 2503 2505 2340 0 -1 4202496 521 0 0 0 9 0 0 0 20 0 1 0 186714 3420160 395 1992294400 134512640 135752675 4289866992 18446744073709551615 134518849 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/2505/statm: 835 395 145 303 0 530 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3340

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

Child status: 0
Real time (s): 0.127165
CPU time (s): 0.12798
CPU user time (s): 0.123981
CPU system time (s): 0.003999
CPU usage (%): 100.641
Max. virtual memory (cumulated for all children) (KiB): 3340

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.123981
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 542
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= 1
involuntary context switches= 3

runsolver used 0.003999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node033 at 2010-07-08 07:19:16
IDJOB=2702405
IDBENCH=48137
IDSOLVER=1190
FILE ID=node033/2702405-1278566356
PBS_JOBID= 11239586
Free space on /tmp= 62512 MiB

SOLVER NAME= wbo 1.4b (fixed)
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mds/normalized-mds_50_25_4.opb
COMMAND LINE= wbo1.4b -file-format=opb -time-limit=TIMEOUT BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2702405-1278566356/watcher-2702405-1278566356 -o /tmp/evaluation-result-2702405-1278566356/solver-2702405-1278566356 -C 1800 -W 2000 -M 1800  wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2702405-1278566356.opb

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

MD5SUM BENCH= a45f8d339393416b6aacc4f79e0ac23e
RANDOM SEED=2024217824

node033.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		: 3000.224
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	: 6000.44
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		: 3000.224
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1831848 kB
Buffers:         39172 kB
Cached:          82196 kB
SwapCached:          0 kB
Active:          51780 kB
Inactive:       128584 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1831848 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            2672 kB
Writeback:           0 kB
AnonPages:       58928 kB
Mapped:          14480 kB
Slab:            24780 kB
PageTables:       4156 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   178572 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-2702405-1278566356.opb

Free space on /tmp at the end= 62508 MiB
End job on node033 at 2010-07-08 07:19:16