Trace number 2655763

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 1.4bOPT3951 0.010997 0.010423

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-LIN/submittedPB07/
poldner/PB/testset/normalized-5_10.opb
MD5SUMba69a176dcc33e2f7eda6b169d4d1c84
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3951
Best CPU time to get the best result obtained on this benchmark0.012997
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3951
Optimality of the best value was proved YES
Number of variables55
Total number of constraints60
Number of constraints which are clauses50
Number of constraints which are cardinality constraints (but not clauses)10
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint5
Number of terms in the objective function 55
Biggest coefficient in the objective function 1772
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 25669
Number of bits of the sum of numbers in the objective function 15
Biggest number in a constraint 1772
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 25669
Number of bits of the biggest sum of numbers15
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 

0.00/0.00	c wbo 1.4 beta - 20100517
0.00/0.00	c Parsing opb file format. File HOME/instance-2655763-1276629800.opb.
0.00/0.00	c Instance file HOME/instance-2655763-1276629800.opb
0.00/0.00	c File size is 2131 bytes.
0.00/0.00	c Highest Coefficient sum: 6
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Parsing time:          0.00         s                                      |
0.00/0.00	c |  Number Variables:      55                                                  |
0.00/0.00	c |  Number Clauses:        60                                                  |
0.00/0.00	c |  Number Cardinality:    10                                                  |
0.00/0.00	c |  Number PB Constraints: 0                                                   |
0.00/0.00	c ============================[ Search Statistics ]==============================
0.00/0.00	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.00	c |           |    Vars     Ctrs     Lits |    Limit  Clauses Lit/Cl |          |
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |      55       70      200 |     5000        0    nan |  0.000 % |
0.00/0.00	c ===============================================================================
0.00/0.00	c New solution: 5444
0.00/0.00	o 5444
0.00/0.00	c Elapsed CPU time: 0 s	Remaining CPU time: 180 s
0.00/0.00	c ===============================================================================
0.00/0.00	c |         0 |      55       71      255 |     5000        0    nan |  0.000 % |
0.00/0.00	c ===============================================================================
0.00/0.00	c New solution: 4066
0.00/0.00	o 4066
0.00/0.00	c Elapsed CPU time: 0.000999 s	Remaining CPU time: 179.999 s
0.00/0.00	c ===============================================================================
0.00/0.00	c |        23 |      55       72      310 |     5000       23     15 |  0.000 % |
0.00/0.00	c |       123 |      55       72      310 |     5500      123     14 |  0.039 % |
0.00/0.00	c ===============================================================================
0.00/0.00	c New solution: 4063
0.00/0.00	o 4063
0.00/0.00	c Elapsed CPU time: 0.003999 s	Remaining CPU time: 179.996 s
0.00/0.00	c ===============================================================================
0.00/0.00	c |       171 |      53       73      365 |     5000      159     14 |  0.039 % |
0.00/0.00	c ===============================================================================
0.00/0.00	c New solution: 3951
0.00/0.00	o 3951
0.00/0.00	c Elapsed CPU time: 0.005999 s	Remaining CPU time: 179.994 s
0.00/0.00	c ===============================================================================
0.00/0.00	c |       251 |      53       74      420 |     5000      239     13 |  0.039 % |
0.00/0.01	c ===============================================================================
0.00/0.01	c Best Solution: 3951
0.00/0.01	s OPTIMUM FOUND
0.00/0.01	c Total CPU time: 0.007998 s
0.00/0.01	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 -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 -x55

Verifier Data 

OK	3951

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2655763-1276629800/watcher-2655763-1276629800 -o /tmp/evaluation-result-2655763-1276629800/solver-2655763-1276629800 -C 1800 -W 2000 -M 1800 wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2655763-1276629800.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: 0.98 1.07 1.27 3/107 4436
/proc/meminfo: memFree=1845904/2059040 swapFree=4140108/4192956
[pid=4436] ppid=4434 vsize=2572 CPUtime=0
/proc/4436/stat : 4436 (wbo1.4b) R 4434 4436 4047 0 -1 4202496 276 0 0 0 0 0 0 0 20 0 1 0 36635725 2633728 194 1992294400 134512640 135751879 4294650880 18446744073709551615 135269054 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/4436/statm: 643 194 147 303 0 338 0

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

Child status: 0
Real time (s): 0.010423
CPU time (s): 0.010997
CPU user time (s): 0.007998
CPU system time (s): 0.002999
CPU usage (%): 105.507
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.007998
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 280
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= 1

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node025 at 2010-06-15 21:23:20
IDJOB=2655763
IDBENCH=24968
IDSOLVER=1161
FILE ID=node025/2655763-1276629800
PBS_JOBID= 11172360
Free space on /tmp= 62580 MiB

SOLVER NAME= wbo 1.4b
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-LIN/submittedPB07/poldner/PB/testset/normalized-5_10.opb
COMMAND LINE= wbo1.4b -file-format=opb -time-limit=TIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2655763-1276629800/watcher-2655763-1276629800 -o /tmp/evaluation-result-2655763-1276629800/solver-2655763-1276629800 -C 1800 -W 2000 -M 1800  wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2655763-1276629800.opb

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

MD5SUM BENCH= ba69a176dcc33e2f7eda6b169d4d1c84
RANDOM SEED=1192010524

node025.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		: 3000.242
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		: 3000.242
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:       1846308 kB
Buffers:         21580 kB
Cached:         102532 kB
SwapCached:       7140 kB
Active:          47956 kB
Inactive:        90380 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1846308 kB
SwapTotal:     4192956 kB
SwapFree:      4140108 kB
Dirty:            2932 kB
Writeback:           0 kB
AnonPages:       11864 kB
Mapped:          13060 kB
Slab:            52496 kB
PageTables:       4112 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181916 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= 62580 MiB
End job on node025 at 2010-06-15 21:23:20