Trace number 2702246

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 0.105983 0.105018

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
roussel/factor-mod-B/factor-mod-size=6-P0=37-P1=23-P2=5-B.opb
MD5SUMbb953622d436623e8cc95a70e227bd07
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 benchmark0.121981
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 variables36
Total number of constraints5
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 constraints5
Minimum length of a constraint6
Maximum length of a constraint48
Number of terms in the objective function 6
Biggest coefficient in the objective function 32
Number of bits for the biggest coefficient in the objective function 6
Sum of the numbers in the objective function 63
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 2048
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 8064
Number of bits of the biggest sum of numbers13
Number of products (including duplicates)72
Sum of products size (including duplicates)144
Number of different products72
Sum of products size144

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-2702246-1278547117.opb.
0.00/0.00	c Instance file HOME/instance-2702246-1278547117.opb
0.00/0.00	c File size is 5226 bytes.
0.00/0.00	c Highest Coefficient sum: 8064
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:        72                                                  |
0.00/0.00	c |  Number Cardinality:    0                                                   |
0.00/0.00	c |  Number PB Constraints: 79                                                  |
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      151      630 |     5000        0    nan |  0.000 % |
0.00/0.00	c |       101 |     108      151      630 |     5500      101     33 |  0.060 % |
0.00/0.01	c |       252 |     108      151      630 |     6050      252     30 |  0.009 % |
0.00/0.01	c ===============================================================================
0.00/0.01	c New solution: 25
0.00/0.01	o 25
0.00/0.01	c Elapsed CPU time: 0.016997 s	Remaining CPU time: 179.983 s
0.00/0.01	c ===============================================================================
0.00/0.01	c |       427 |     108      152      636 |     5000      427     29 |  0.009 % |
0.01/0.02	c ===============================================================================
0.01/0.02	c New solution: 13
0.01/0.02	o 13
0.01/0.02	c Elapsed CPU time: 0.020996 s	Remaining CPU time: 179.979 s
0.01/0.02	c ===============================================================================
0.01/0.02	c |       520 |     100      153      642 |     5000      507     29 |  0.009 % |
0.01/0.02	c ===============================================================================
0.01/0.02	c New solution: 3
0.01/0.02	o 3
0.01/0.02	c Elapsed CPU time: 0.023996 s	Remaining CPU time: 179.976 s
0.01/0.02	c ===============================================================================
0.01/0.02	c |       580 |      92      154      648 |     5000      567     29 |  0.009 % |
0.01/0.03	c |       680 |      68      154      648 |     5500      667     29 | 38.024 % |
0.01/0.04	c |       830 |      68      154      648 |     6050      817     27 | 37.972 % |
0.01/0.05	c |      1058 |      68      154      648 |     6655     1045     25 | 37.972 % |
0.01/0.07	c |      1395 |      68      154      648 |     7320     1382     23 | 37.973 % |
0.09/0.10	c ===============================================================================
0.09/0.10	c Best Solution: 3
0.09/0.10	s OPTIMUM FOUND
0.09/0.10	c Total CPU time: 0.100984 s
0.09/0.10	v x1 x2 -x3 -x4 -x5 -x6 x7 x8 -x9 -x10 -x11 x12 x13 x14 x15 -x16 -x17 -x18 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 x19 -x20 -x21 x22 -x23 x24 x25 -x26 -x27 -x28 -x29 -x30 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 -x31 -x32 x33 -x34 -x35 -x36

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-2702246-1278547117/watcher-2702246-1278547117 -o /tmp/evaluation-result-2702246-1278547117/solver-2702246-1278547117 -C 1800 -W 2000 -M 1800 wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2702246-1278547117.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: 1.05 0.97 0.60 3/106 1696
/proc/meminfo: memFree=1596276/2059040 swapFree=4139384/4192956
[pid=1696] ppid=1694 vsize=2440 CPUtime=0
/proc/1696/stat : 1696 (wbo1.4b) R 1694 1696 1088 0 -1 4202496 277 0 0 0 0 0 0 0 18 0 1 0 22925496 2498560 193 1992294400 134512640 135751879 4294060656 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/1696/statm: 610 193 146 303 0 305 0

[startup+0.0221971 s]
/proc/loadavg: 1.05 0.97 0.60 3/106 1696
/proc/meminfo: memFree=1596276/2059040 swapFree=4139384/4192956
[pid=1696] ppid=1694 vsize=2568 CPUtime=0.01
/proc/1696/stat : 1696 (wbo1.4b) R 1694 1696 1088 0 -1 4202496 302 0 0 0 1 0 0 0 20 0 1 0 22925496 2629632 218 1992294400 134512640 135751879 4294060656 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/1696/statm: 642 218 147 303 0 337 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2568

[startup+0.101206 s]
/proc/loadavg: 1.05 0.97 0.60 3/106 1696
/proc/meminfo: memFree=1596276/2059040 swapFree=4139384/4192956
[pid=1696] ppid=1694 vsize=2832 CPUtime=0.09
/proc/1696/stat : 1696 (wbo1.4b) R 1694 1696 1088 0 -1 4202496 364 0 0 0 9 0 0 0 20 0 1 0 22925496 2899968 280 1992294400 134512640 135751879 4294060656 18446744073709551615 135270609 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/1696/statm: 708 280 147 303 0 403 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2832

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

Child status: 0
Real time (s): 0.105018
CPU time (s): 0.105983
CPU user time (s): 0.100984
CPU system time (s): 0.004999
CPU usage (%): 100.919
Max. virtual memory (cumulated for all children) (KiB): 2832

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.100984
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= 368
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 0.001999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node001 at 2010-07-08 01:58:37
IDJOB=2702246
IDBENCH=48058
IDSOLVER=1161
FILE ID=node001/2702246-1278547117
PBS_JOBID= 11239529
Free space on /tmp= 62472 MiB

SOLVER NAME= wbo 1.4b
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=6-P0=37-P1=23-P2=5-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-2702246-1278547117/watcher-2702246-1278547117 -o /tmp/evaluation-result-2702246-1278547117/solver-2702246-1278547117 -C 1800 -W 2000 -M 1800  wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2702246-1278547117.opb

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

MD5SUM BENCH= bb953622d436623e8cc95a70e227bd07
RANDOM SEED=2143259115

node001.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		: 3000.215
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		: 3000.215
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:       1597176 kB
Buffers:         68704 kB
Cached:         289148 kB
SwapCached:       7348 kB
Active:         114152 kB
Inactive:       257860 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1597176 kB
SwapTotal:     4192956 kB
SwapFree:      4139384 kB
Dirty:            2640 kB
Writeback:           0 kB
AnonPages:       11476 kB
Mapped:          11940 kB
Slab:            68016 kB
PageTables:       4192 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180548 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-2702246-1278547117.opb

Free space on /tmp at the end= 62472 MiB
End job on node001 at 2010-07-08 01:58:37