Trace number 2702107

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 (fixed)OPT3 0.129979 0.129748

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=5-P0=23-P1=29-P2=31-P3=29-B.opb
MD5SUM7f740fd18ebc77ce265267f0b49c2e51
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 benchmark0.072988
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 variables45
Total number of constraints7
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 constraints7
Minimum length of a constraint5
Maximum length of a constraint35
Number of terms in the objective function 5
Biggest coefficient in the objective function 16
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 31
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 512
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 1984
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)75
Sum of products size (including duplicates)150
Number of different products75
Sum of products size150

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 - 20100610
0.00/0.00	c Parsing opb file format. File HOME/instance-2702107-1278546507.opb.
0.00/0.00	c Instance file HOME/instance-2702107-1278546507.opb
0.00/0.00	c File size is 5525 bytes.
0.00/0.00	c Highest Coefficient sum: 1984
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:      120                                                 |
0.00/0.00	c |  Number Clauses:        75                                                  |
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 |     120      160      670 |     5000        0    nan |  0.000 % |
0.00/0.00	c |       100 |     120      160      670 |     5500      100     23 |  0.042 % |
0.00/0.01	c |       251 |     120      160      670 |     6050      251     22 |  0.042 % |
0.00/0.01	c ===============================================================================
0.00/0.01	c New solution: 15
0.00/0.01	o 15
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 |       325 |     120      161      675 |     5000      325     22 |  0.042 % |
0.00/0.01	c |       425 |     113      161      675 |     5500      424     22 |  5.875 % |
0.01/0.02	c |       576 |     113      161      675 |     6050      575     23 |  5.840 % |
0.01/0.02	c ===============================================================================
0.01/0.02	c New solution: 5
0.01/0.02	o 5
0.01/0.02	c Elapsed CPU time: 0.027995 s	Remaining CPU time: 179.972 s
0.01/0.02	c ===============================================================================
0.01/0.02	c |       701 |     113      162      680 |     5000      700     22 |  5.840 % |
0.01/0.03	c ===============================================================================
0.01/0.03	c New solution: 3
0.01/0.03	o 3
0.01/0.03	c Elapsed CPU time: 0.032994 s	Remaining CPU time: 179.967 s
0.01/0.03	c ===============================================================================
0.01/0.03	c |       787 |     106      163      685 |     5000      786     22 |  5.840 % |
0.01/0.03	c |       887 |     106      163      685 |     5500      886     22 | 24.216 % |
0.01/0.04	c |      1037 |      93      163      685 |     6050     1036     23 | 24.174 % |
0.01/0.05	c |      1262 |      90      163      685 |     6655     1213     22 | 25.049 % |
0.01/0.07	c |      1603 |      90      163      685 |     7320     1554     24 | 25.042 % |
0.09/0.11	c |      2109 |      85      163      685 |     8052     2060     24 | 30.008 % |
0.09/0.13	c ===============================================================================
0.09/0.13	c Best Solution: 3
0.09/0.13	s OPTIMUM FOUND
0.09/0.13	c Total CPU time: 0.12698 s
0.09/0.13	v x1 x2 -x3 -x4 -x5 x6 x7 -x8 x9 x10 x11 -x12 -x13 -x14 x15 x16 -x17 -x18 -x19 x20 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 x21 -x22 -x23 -x24 x25 -x31 x32 -x33 -x34 -x35 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 x26 -x27 -x28 -x29 -x30 x36 -x37 -x38 x39 -x40 x96 -x97 -x98 -x99 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 x116 -x117 -x118 -x119 -x120 -x41 -x42 -x43 -x44 -x45

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-2702107-1278546507/watcher-2702107-1278546507 -o /tmp/evaluation-result-2702107-1278546507/solver-2702107-1278546507 -C 1800 -W 2000 -M 1800 wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2702107-1278546507.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 0.60 0.25 3/106 26848
/proc/meminfo: memFree=1736804/2059040 swapFree=4139756/4192956
[pid=26848] ppid=26846 vsize=2564 CPUtime=0
/proc/26848/stat : 26848 (wbo1.4b) R 26846 26848 26473 0 -1 4202496 277 0 0 0 0 0 0 0 20 0 1 0 22858150 2625536 194 1992294400 134512640 135752675 4288479872 18446744073709551615 135271249 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/26848/statm: 641 194 145 303 0 336 0

[startup+0.020412 s]
/proc/loadavg: 0.98 0.60 0.25 3/106 26848
/proc/meminfo: memFree=1736804/2059040 swapFree=4139756/4192956
[pid=26848] ppid=26846 vsize=2564 CPUtime=0.01
/proc/26848/stat : 26848 (wbo1.4b) R 26846 26848 26473 0 -1 4202496 294 0 0 0 1 0 0 0 20 0 1 0 22858150 2625536 211 1992294400 134512640 135752675 4288479872 18446744073709551615 135271249 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/26848/statm: 641 211 145 303 0 336 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2564

[startup+0.10142 s]
/proc/loadavg: 0.98 0.60 0.25 3/106 26848
/proc/meminfo: memFree=1736804/2059040 swapFree=4139756/4192956
[pid=26848] ppid=26846 vsize=2828 CPUtime=0.09
/proc/26848/stat : 26848 (wbo1.4b) R 26846 26848 26473 0 -1 4202496 368 0 0 0 9 0 0 0 20 0 1 0 22858150 2895872 285 1992294400 134512640 135752675 4288479872 18446744073709551615 135271249 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/26848/statm: 707 285 145 303 0 402 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2828

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

Child status: 0
Real time (s): 0.129748
CPU time (s): 0.129979
CPU user time (s): 0.12698
CPU system time (s): 0.002999
CPU usage (%): 100.178
Max. virtual memory (cumulated for all children) (KiB): 2828

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.12698
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= 388
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= 3
involuntary context switches= 2

runsolver used 0.005999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node042 at 2010-07-08 01:48:27
IDJOB=2702107
IDBENCH=47988
IDSOLVER=1190
FILE ID=node042/2702107-1278546507
PBS_JOBID= 11239498
Free space on /tmp= 62460 MiB

SOLVER NAME= wbo 1.4b (fixed)
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=23-P1=29-P2=31-P3=29-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-2702107-1278546507/watcher-2702107-1278546507 -o /tmp/evaluation-result-2702107-1278546507/solver-2702107-1278546507 -C 1800 -W 2000 -M 1800  wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2702107-1278546507.opb

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

MD5SUM BENCH= 7f740fd18ebc77ce265267f0b49c2e51
RANDOM SEED=1801330230

node042.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		: 3000.213
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	: 6000.42
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		: 3000.213
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	: 5599.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1737704 kB
Buffers:         56932 kB
Cached:         176204 kB
SwapCached:       7224 kB
Active:         132276 kB
Inactive:       114992 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1737704 kB
SwapTotal:     4192956 kB
SwapFree:      4139756 kB
Dirty:            2612 kB
Writeback:           0 kB
AnonPages:       11412 kB
Mapped:          11932 kB
Slab:            52200 kB
PageTables:       4140 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182076 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-2702107-1278546507.opb

Free space on /tmp at the end= 62460 MiB
End job on node042 at 2010-07-08 01:48:27