Trace number 2702044

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 1.4bOPT3 0.029994 0.031094

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=9-P0=263-P1=269-B.opb
MD5SUMb613dc01eaf727bc9d40c6e07a29423b
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.076987
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
Optimality of the best value was proved YES
Number of variables27
Total number of constraints3
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 constraints3
Minimum length of a constraint9
Maximum length of a constraint90
Number of terms in the objective function 9
Biggest coefficient in the objective function 256
Number of bits for the biggest coefficient in the objective function 9
Sum of the numbers in the objective function 511
Number of bits of the sum of numbers in the objective function 9
Biggest number in a constraint 131072
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 522844
Number of bits of the biggest sum of numbers19
Number of products (including duplicates)81
Sum of products size (including duplicates)162
Number of different products81
Sum of products size162

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-2702044-1278546361.opb.
0.00/0.00	c Instance file HOME/instance-2702044-1278546361.opb
0.00/0.00	c File size is 5806 bytes.
0.00/0.00	c Highest Coefficient sum: 522844
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:      108                                                 |
0.00/0.00	c |  Number Clauses:        81                                                  |
0.00/0.00	c |  Number Cardinality:    0                                                   |
0.00/0.00	c |  Number PB Constraints: 85                                                  |
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 |     108      166      684 |     5000        0    nan |  0.000 % |
0.00/0.01	c |       104 |     108      166      684 |     5500      104     61 |  0.086 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c New solution: 201
0.00/0.02	o 201
0.00/0.02	c Elapsed CPU time: 0.018997 s	Remaining CPU time: 179.981 s
0.00/0.02	c ===============================================================================
0.00/0.02	c |       194 |     108      167      693 |     5000      194     57 |  0.086 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c New solution: 13
0.00/0.02	o 13
0.00/0.02	c Elapsed CPU time: 0.019996 s	Remaining CPU time: 179.98 s
0.00/0.02	c ===============================================================================
0.00/0.02	c |       199 |      97      168      702 |     5000      198     58 |  0.086 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c New solution: 7
0.00/0.02	o 7
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 |       280 |      53      169      711 |     5000      279     59 |  0.086 % |
0.00/0.03	c ===============================================================================
0.00/0.03	c New solution: 5
0.00/0.03	o 5
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 |       300 |      39      170      720 |     5000      299     59 |  0.086 % |
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: 0.028995 s	Remaining CPU time: 179.971 s
0.00/0.03	c ===============================================================================
0.00/0.03	c ===============================================================================
0.00/0.03	c Best Solution: 3
0.00/0.03	s OPTIMUM FOUND
0.00/0.03	c Total CPU time: 0.028995 s
0.00/0.03	v x1 x2 -x3 -x4 -x5 -x6 -x7 -x8 -x9 x10 -x11 -x12 x13 -x14 -x15 x16 x17 -x18 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 x56 -x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79 -x80 -x81 x82 x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 x91 x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 x19 -x20 -x21 -x22 -x23 -x24 -x25 -x26 -x27

Verifier Data 

OK	3

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2702044-1278546361/watcher-2702044-1278546361 -o /tmp/evaluation-result-2702044-1278546361/solver-2702044-1278546361 -C 1800 -W 2000 -M 1800 wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2702044-1278546361.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: 2.76 1.10 0.40 3/106 30072
/proc/meminfo: memFree=1923928/2059040 swapFree=4085004/4192956
[pid=30072] ppid=30070 vsize=2564 CPUtime=0
/proc/30072/stat : 30072 (wbo1.4b) R 30070 30072 29918 0 -1 4202496 277 0 0 0 0 0 0 0 18 0 1 0 22849117 2625536 193 1992294400 134512640 135751879 4293846000 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 0 0 0 0
/proc/30072/statm: 641 193 146 303 0 336 0

[startup+0.010001 s]
/proc/loadavg: 2.76 1.10 0.40 3/106 30072
/proc/meminfo: memFree=1923928/2059040 swapFree=4085004/4192956
[pid=30072] ppid=30070 vsize=2564 CPUtime=0
/proc/30072/stat : 30072 (wbo1.4b) R 30070 30072 29918 0 -1 4202496 278 0 0 0 0 0 0 0 18 0 1 0 22849117 2625536 194 1992294400 134512640 135751879 4293846000 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 0 0 0 0
/proc/30072/statm: 641 194 146 303 0 336 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2564

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

[startup+0.010001 s]
/proc/loadavg: 2.76 1.10 0.40 3/106 30072
/proc/meminfo: memFree=1923928/2059040 swapFree=4085004/4192956
[pid=30072] ppid=30070 vsize=2564 CPUtime=0
/proc/30072/stat : 30072 (wbo1.4b) R 30070 30072 29918 0 -1 4202496 278 0 0 0 0 0 0 0 18 0 1 0 22849117 2625536 194 1992294400 134512640 135751879 4293846000 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 0 0 0 0
/proc/30072/statm: 641 194 146 303 0 336 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 2564

Child status: 0
Real time (s): 0.031094
CPU time (s): 0.029994
CPU user time (s): 0.028995
CPU system time (s): 0.000999
CPU usage (%): 96.4625
Max. virtual memory (cumulated for all children) (KiB): 2564

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.028995
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= 301
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= 2

runsolver used 0.004999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node013 at 2010-07-08 01:46:01
IDJOB=2702044
IDBENCH=47957
IDSOLVER=1161
FILE ID=node013/2702044-1278546361
PBS_JOBID= 11239518
Free space on /tmp= 62544 MiB

SOLVER NAME= wbo 1.4b
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=9-P0=263-P1=269-B.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-2702044-1278546361/watcher-2702044-1278546361 -o /tmp/evaluation-result-2702044-1278546361/solver-2702044-1278546361 -C 1800 -W 2000 -M 1800  wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2702044-1278546361.opb

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

MD5SUM BENCH= b613dc01eaf727bc9d40c6e07a29423b
RANDOM SEED=1416076264

node013.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		: 3000.218
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	: 6000.43
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		: 3000.218
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:       1924952 kB
Buffers:          2452 kB
Cached:          18256 kB
SwapCached:      55892 kB
Active:          14360 kB
Inactive:        64676 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1924952 kB
SwapTotal:     4192956 kB
SwapFree:      4085004 kB
Dirty:            3452 kB
Writeback:           0 kB
AnonPages:        7872 kB
Mapped:           6068 kB
Slab:            33296 kB
PageTables:       4188 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181972 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-2702044-1278546361.opb

Free space on /tmp at the end= 62540 MiB
End job on node013 at 2010-07-08 01:46:02