Trace number 2656153

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? (problem) 0.197969 0.197511

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/
primes-dimacs-cnf/normalized-bf2670-001.opb
MD5SUM7ecb3834576c61e36b2048d581937745
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.066989
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables2786
Total number of constraints4827
Number of constraints which are clauses4827
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint5
Number of terms in the objective function 2786
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 2786
Number of bits of the sum of numbers in the objective function 12
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 2786
Number of bits of the biggest sum of numbers12
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 wbo 1.4 beta - 20100517
0.00/0.00	c Parsing opb file format. File HOME/instance-2656153-1276427820.opb.
0.00/0.00	c Instance file HOME/instance-2656153-1276427820.opb
0.00/0.00	c File size is 151905 bytes.
0.00/0.02	c Highest Coefficient sum: 6
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:      2786                                                |
0.00/0.02	c |  Number Clauses:        4827                                                |
0.00/0.02	c |  Number Cardinality:    0                                                   |
0.00/0.02	c |  Number PB Constraints: 0                                                   |

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2656153-1276427820/watcher-2656153-1276427820 -o /tmp/evaluation-result-2656153-1276427820/solver-2656153-1276427820 -C 1800 -W 2000 -M 1800 wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2656153-1276427820.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: 1.10 1.02 1.00 2/106 23493
/proc/meminfo: memFree=1847596/2059040 swapFree=4140388/4192956
[pid=23493] ppid=23491 vsize=3176 CPUtime=0
/proc/23493/stat : 23493 (wbo1.4b) R 23491 23493 22981 0 -1 4202496 397 0 0 0 0 0 0 0 25 0 1 0 18383659 3252224 315 1992294400 134512640 135751879 4294774160 18446744073709551615 134564614 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/23493/statm: 794 315 144 303 0 451 0

[startup+0.0468909 s]
/proc/loadavg: 1.10 1.02 1.00 2/106 23493
/proc/meminfo: memFree=1847596/2059040 swapFree=4140388/4192956
[pid=23493] ppid=23491 vsize=4080 CPUtime=0.04
/proc/23493/stat : 23493 (wbo1.4b) R 23491 23493 22981 0 -1 4202496 676 0 0 0 4 0 0 0 25 0 1 0 18383659 4177920 556 1992294400 134512640 135751879 4294774160 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/23493/statm: 1020 556 145 303 0 715 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 4080

[startup+0.100902 s]
/proc/loadavg: 1.10 1.02 1.00 2/106 23493
/proc/meminfo: memFree=1847596/2059040 swapFree=4140388/4192956
[pid=23493] ppid=23491 vsize=4080 CPUtime=0.09
/proc/23493/stat : 23493 (wbo1.4b) R 23491 23493 22981 0 -1 4202496 681 0 0 0 9 0 0 0 25 0 1 0 18383659 4177920 561 1992294400 134512640 135751879 4294774160 18446744073709551615 134524021 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/23493/statm: 1020 561 145 303 0 715 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4080

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

Child status: 0
Real time (s): 0.197511
CPU time (s): 0.197969
CPU user time (s): 0.19297
CPU system time (s): 0.004999
CPU usage (%): 100.232
Max. virtual memory (cumulated for all children) (KiB): 4080

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.19297
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 710
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 0.002999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node010 at 2010-06-13 13:17:00
IDJOB=2656153
IDBENCH=2103
IDSOLVER=1161
FILE ID=node010/2656153-1276427820
PBS_JOBID= 11173306
Free space on /tmp= 62500 MiB

SOLVER NAME= wbo 1.4b
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/primes-dimacs-cnf/normalized-bf2670-001.opb
COMMAND LINE= wbo1.4b -file-format=opb -time-limit=TIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2656153-1276427820/watcher-2656153-1276427820 -o /tmp/evaluation-result-2656153-1276427820/solver-2656153-1276427820 -C 1800 -W 2000 -M 1800  wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2656153-1276427820.opb

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

MD5SUM BENCH= 7ecb3834576c61e36b2048d581937745
RANDOM SEED=187548024

node010.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		: 3000.267
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	: 6000.53
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		: 3000.267
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:       1848124 kB
Buffers:         11456 kB
Cached:         120388 kB
SwapCached:       6460 kB
Active:          95488 kB
Inactive:        49656 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1848124 kB
SwapTotal:     4192956 kB
SwapFree:      4140388 kB
Dirty:            3204 kB
Writeback:           4 kB
AnonPages:       11028 kB
Mapped:          12964 kB
Slab:            44028 kB
PageTables:       4004 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181020 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= 62496 MiB
End job on node010 at 2010-06-13 13:17:01