Trace number 2702486

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 1.4bOPT-6 0.051991 0.0527029

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mis/normalized-mis_50_25_4.opb
MD5SUM86191362e647705fbaa0ee217c43491b
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-6
Best CPU time to get the best result obtained on this benchmark0.05399
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -6
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 constraint25
Maximum length of a constraint37
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 products733
Sum of products size1466

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-2702486-1278568431.opb.
0.00/0.00	c Instance file HOME/instance-2702486-1278568431.opb
0.00/0.00	c File size is 56456 bytes.
0.00/0.01	c Highest Coefficient sum: 37
0.00/0.01	c ============================[ Problem Statistics ]=============================
0.00/0.01	c |                                                                             |
0.00/0.01	c |  Parsing time:          0.01         s                                      |
0.00/0.01	c |  Number Variables:      783                                                 |
0.00/0.01	c |  Number Clauses:        733                                                 |
0.00/0.01	c |  Number Cardinality:    100                                                 |
0.00/0.01	c |  Number PB Constraints: 733                                                 |
0.00/0.01	c ============================[ Search Statistics ]==============================
0.00/0.01	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.00/0.01	c |           |    Vars     Ctrs     Lits |    Limit  Clauses Lit/Cl |          |
0.00/0.01	c ===============================================================================
0.00/0.01	c |         0 |      50     1566     3565 |     5000        0    nan |  0.000 % |
0.00/0.01	c ===============================================================================
0.00/0.01	c New solution: 50
0.00/0.01	o 50
0.00/0.01	c Elapsed CPU time: 0.011998 s	Remaining CPU time: 179.988 s
0.00/0.01	c ===============================================================================
0.00/0.01	c |         0 |      50     1567     3615 |     5000        0    nan |  0.000 % |
0.00/0.01	c ===============================================================================
0.00/0.01	c New solution: 49
0.00/0.01	o 49
0.00/0.01	c Elapsed CPU time: 0.012998 s	Remaining CPU time: 179.987 s
0.00/0.01	c ===============================================================================
0.00/0.01	c |         0 |      50     1568     3665 |     5000        0    nan |  0.000 % |
0.00/0.01	c ===============================================================================
0.00/0.01	c New solution: 48
0.00/0.01	o 48
0.00/0.01	c Elapsed CPU time: 0.012998 s	Remaining CPU time: 179.987 s
0.00/0.01	c ===============================================================================
0.00/0.01	c |         1 |      50     1569     3715 |     5000        1     49 |  0.000 % |
0.00/0.01	c ===============================================================================
0.00/0.01	c New solution: 47
0.00/0.01	o 47
0.00/0.01	c Elapsed CPU time: 0.012998 s	Remaining CPU time: 179.987 s
0.00/0.01	c ===============================================================================
0.00/0.01	c |         5 |      50     1570     3765 |     5000        5     49 |  0.000 % |
0.00/0.01	c ===============================================================================
0.00/0.01	c New solution: 46
0.00/0.01	o 46
0.00/0.01	c Elapsed CPU time: 0.013997 s	Remaining CPU time: 179.986 s
0.00/0.01	c ===============================================================================
0.00/0.01	c |        22 |      50     1571     3815 |     5000       22     57 |  0.000 % |
0.00/0.01	c ===============================================================================
0.00/0.01	c New solution: 45
0.00/0.01	o 45
0.00/0.01	c Elapsed CPU time: 0.014997 s	Remaining CPU time: 179.985 s
0.00/0.01	c ===============================================================================
0.00/0.01	c |        60 |      50     1572     3865 |     5000       60     71 |  0.000 % |
0.00/0.02	c |       163 |      50     1572     3865 |     5500      163     83 | 93.614 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c New solution: 44
0.00/0.02	o 44
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 |       189 |      50     1573     3915 |     5000      189     83 | 93.614 % |
0.00/0.03	c |       289 |      50     1573     3915 |     5500      289     86 | 93.614 % |
0.04/0.04	c |       439 |      20     1573     3915 |     6050        7     52 | 97.446 % |
0.04/0.05	c ===============================================================================
0.04/0.05	c Best Solution: 44
0.04/0.05	s OPTIMUM FOUND
0.04/0.05	c Total CPU time: 0.050992 s
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Verifier Data 

OK	-6

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2702486-1278568431/watcher-2702486-1278568431 -o /tmp/evaluation-result-2702486-1278568431/solver-2702486-1278568431 -C 1800 -W 2000 -M 1800 wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2702486-1278568431.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 1.04 1.00 2/106 32020
/proc/meminfo: memFree=1498956/2059040 swapFree=4192956/4192956
[pid=32020] ppid=32018 vsize=2760 CPUtime=0
/proc/32020/stat : 32020 (wbo1.4b) R 32018 32020 31536 0 -1 4202496 321 0 0 0 0 0 0 0 20 0 1 0 25056222 2826240 240 1992294400 134512640 135751879 4288982624 18446744073709551615 135228447 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/32020/statm: 690 240 147 303 0 371 0

[startup+0.0444031 s]
/proc/loadavg: 1.10 1.04 1.00 2/106 32020
/proc/meminfo: memFree=1498956/2059040 swapFree=4192956/4192956
[pid=32020] ppid=32018 vsize=2936 CPUtime=0.04
/proc/32020/stat : 32020 (wbo1.4b) R 32018 32020 31536 0 -1 4202496 412 0 0 0 4 0 0 0 18 0 1 0 25056222 3006464 312 1992294400 134512640 135751879 4288982624 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/32020/statm: 734 312 147 303 0 429 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2936

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

[startup+0.0444031 s]
/proc/loadavg: 1.10 1.04 1.00 2/106 32020
/proc/meminfo: memFree=1498956/2059040 swapFree=4192956/4192956
[pid=32020] ppid=32018 vsize=2936 CPUtime=0.04
/proc/32020/stat : 32020 (wbo1.4b) R 32018 32020 31536 0 -1 4202496 412 0 0 0 4 0 0 0 18 0 1 0 25056222 3006464 312 1992294400 134512640 135751879 4288982624 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/32020/statm: 734 312 147 303 0 429 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2936

Child status: 0
Real time (s): 0.0527029
CPU time (s): 0.051991
CPU user time (s): 0.050992
CPU system time (s): 0.000999
CPU usage (%): 98.6492
Max. virtual memory (cumulated for all children) (KiB): 2936

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.050992
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 428
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= 4
involuntary context switches= 1

runsolver used 0.000999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node010 at 2010-07-08 07:53:51
IDJOB=2702486
IDBENCH=48178
IDSOLVER=1161
FILE ID=node010/2702486-1278568431
PBS_JOBID= 11239556
Free space on /tmp= 62520 MiB

SOLVER NAME= wbo 1.4b
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mis/normalized-mis_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-2702486-1278568431/watcher-2702486-1278568431 -o /tmp/evaluation-result-2702486-1278568431/solver-2702486-1278568431 -C 1800 -W 2000 -M 1800  wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2702486-1278568431.opb

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

MD5SUM BENCH= 86191362e647705fbaa0ee217c43491b
RANDOM SEED=1182509191

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		: 3000.258
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	: 6000.51
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		: 3000.258
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:       1499732 kB
Buffers:         91900 kB
Cached:         317212 kB
SwapCached:          0 kB
Active:         185480 kB
Inactive:       283248 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1499732 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            2652 kB
Writeback:           8 kB
AnonPages:       59616 kB
Mapped:          14428 kB
Slab:            68664 kB
PageTables:       4124 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180784 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-2702486-1278568431.opb

Free space on /tmp at the end= 62520 MiB
End job on node010 at 2010-07-08 07:53:51