Trace number 2702037

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 0.511922 0.511492

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=6-P0=31-P1=31-P2=37-P3=37-B.opb
MD5SUM1faefeca557086bb8f2ad91e3f4c80d3
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 benchmark0.122981
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 variables54
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 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)108
Sum of products size (including duplicates)216
Number of different products108
Sum of products size216

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-2702037-1278546351.opb.
0.00/0.00	c Instance file HOME/instance-2702037-1278546351.opb
0.00/0.00	c File size is 7959 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:      162                                                 |
0.00/0.00	c |  Number Clauses:        108                                                 |
0.00/0.00	c |  Number Cardinality:    0                                                   |
0.00/0.00	c |  Number PB Constraints: 118                                                 |
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 |     162      226      948 |     5000        0    nan |  0.000 % |
0.00/0.00	c |       102 |     162      226      948 |     5500      102     34 |  0.027 % |
0.00/0.01	c |       252 |     162      226      948 |     6050      252     30 |  0.027 % |
0.00/0.01	c ===============================================================================
0.00/0.01	c New solution: 5
0.00/0.01	o 5
0.00/0.01	c Elapsed CPU time: 0.015997 s	Remaining CPU time: 179.984 s
0.00/0.01	c ===============================================================================
0.00/0.01	c |       404 |     162      227      954 |     5000      404     29 |  0.027 % |
0.00/0.02	c |       505 |     138      227      954 |     5500      464     30 | 14.819 % |
0.02/0.03	c |       656 |     138      227      954 |     6050      615     30 | 14.842 % |
0.02/0.04	c |       881 |     138      227      954 |     6655      840     29 | 14.819 % |
0.02/0.05	c |      1218 |     138      227      954 |     7320     1177     27 | 14.819 % |
0.02/0.07	c ===============================================================================
0.02/0.07	c New solution: 3
0.02/0.07	o 3
0.02/0.07	c Elapsed CPU time: 0.067989 s	Remaining CPU time: 179.932 s
0.02/0.07	c ===============================================================================
0.02/0.07	c |      1503 |     138      228      960 |     5000     1462     28 | 14.819 % |
0.02/0.08	c |      1603 |     121      228      960 |     5500     1553     28 | 25.312 % |
0.02/0.09	c |      1754 |     121      228      960 |     6050     1704     29 | 25.312 % |
0.09/0.11	c |      1979 |     121      228      960 |     6655     1929     30 | 25.312 % |
0.09/0.13	c |      2317 |     121      228      960 |     7320     2267     31 | 25.335 % |
0.09/0.16	c |      2824 |     120      228      960 |     8052     2774     30 | 25.960 % |
0.19/0.23	c |      3584 |     120      228      960 |     8857     3534     31 | 25.953 % |
0.29/0.37	c |      4723 |     120      228      960 |     9743     4673     31 | 25.930 % |
0.50/0.51	c ===============================================================================
0.50/0.51	c Best Solution: 3
0.50/0.51	s OPTIMUM FOUND
0.50/0.51	c Total CPU time: 0.498924 s
0.50/0.51	v x1 x2 -x3 -x4 -x5 -x6 x7 x8 -x9 x10 -x11 x12 x13 -x14 -x15 -x16 x17 -x18 x19 -x20 -x21 x22 -x23 -x24 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 x25 -x26 -x27 -x28 -x29 -x30 -x37 x38 -x39 -x40 -x41 -x42 x91 -x92 -x93 -x94 -x95 -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 -x121 -x122 -x123 -x124 -x125 -x126 x31 -x32 -x33 -x34 x35 -x36 -x43 -x44 -x45 -x46 -x47 -x48 x127 -x128 -x129 -x130 x131 -x132 -x133 -x134 -x135 -x136 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 x145 -x146 -x147 -x148 x149 -x150 -x151 -x152 -x153 -x154 -x155 -x156 -x157 -x158 -x159 -x160 -x161 -x162 -x49 x50 -x51 -x52 -x53 -x54

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-2702037-1278546351/watcher-2702037-1278546351 -o /tmp/evaluation-result-2702037-1278546351/solver-2702037-1278546351 -C 1800 -W 2000 -M 1800 wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2702037-1278546351.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: 0.79 0.31 0.11 3/106 31289
/proc/meminfo: memFree=1702052/2059040 swapFree=4164940/4192956
[pid=31289] ppid=31287 vsize=2576 CPUtime=0
/proc/31289/stat : 31289 (wbo1.4b) R 31287 31289 30782 0 -1 4202496 286 0 0 0 0 0 0 0 20 0 1 0 22842303 2637824 202 1992294400 134512640 135752675 4288237296 18446744073709551615 135271249 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/31289/statm: 644 202 145 303 0 339 0

[startup+0.027377 s]
/proc/loadavg: 0.79 0.31 0.11 3/106 31289
/proc/meminfo: memFree=1702052/2059040 swapFree=4164940/4192956
[pid=31289] ppid=31287 vsize=2704 CPUtime=0.02
/proc/31289/stat : 31289 (wbo1.4b) R 31287 31289 30782 0 -1 4202496 313 0 0 0 2 0 0 0 20 0 1 0 22842303 2768896 229 1992294400 134512640 135752675 4288237296 18446744073709551615 135271249 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/31289/statm: 676 229 145 303 0 371 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2704

[startup+0.10139 s]
/proc/loadavg: 0.79 0.31 0.11 3/106 31289
/proc/meminfo: memFree=1702052/2059040 swapFree=4164940/4192956
[pid=31289] ppid=31287 vsize=2968 CPUtime=0.09
/proc/31289/stat : 31289 (wbo1.4b) R 31287 31289 30782 0 -1 4202496 388 0 0 0 9 0 0 0 20 0 1 0 22842303 3039232 304 1992294400 134512640 135752675 4288237296 18446744073709551615 135271249 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/31289/statm: 742 304 145 303 0 437 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2968

[startup+0.301427 s]
/proc/loadavg: 0.79 0.31 0.11 3/106 31289
/proc/meminfo: memFree=1702052/2059040 swapFree=4164940/4192956
[pid=31289] ppid=31287 vsize=3492 CPUtime=0.29
/proc/31289/stat : 31289 (wbo1.4b) R 31287 31289 30782 0 -1 4202496 527 0 0 0 29 0 0 0 20 0 1 0 22842303 3575808 443 1992294400 134512640 135752675 4288237296 18446744073709551615 135271249 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/31289/statm: 873 443 145 303 0 568 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3492

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

[startup+0.501463 s]
/proc/loadavg: 0.79 0.31 0.11 3/106 31289
/proc/meminfo: memFree=1702052/2059040 swapFree=4164940/4192956
[pid=31289] ppid=31287 vsize=3884 CPUtime=0.5
/proc/31289/stat : 31289 (wbo1.4b) R 31287 31289 30782 0 -1 4202496 604 0 0 0 49 1 0 0 20 0 1 0 22842303 3977216 520 1992294400 134512640 135752675 4288237296 18446744073709551615 135271249 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/31289/statm: 971 520 145 303 0 666 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 3884

Child status: 0
Real time (s): 0.511492
CPU time (s): 0.511922
CPU user time (s): 0.498924
CPU system time (s): 0.012998
CPU usage (%): 100.084
Max. virtual memory (cumulated for all children) (KiB): 3884

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.498924
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 608
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 node045 at 2010-07-08 01:45:51
IDJOB=2702037
IDBENCH=47953
IDSOLVER=1190
FILE ID=node045/2702037-1278546351
PBS_JOBID= 11239495
Free space on /tmp= 62524 MiB

SOLVER NAME= wbo 1.4b (fixed)
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=6-P0=31-P1=31-P2=37-P3=37-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-2702037-1278546351/watcher-2702037-1278546351 -o /tmp/evaluation-result-2702037-1278546351/solver-2702037-1278546351 -C 1800 -W 2000 -M 1800  wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2702037-1278546351.opb

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

MD5SUM BENCH= 1faefeca557086bb8f2ad91e3f4c80d3
RANDOM SEED=956359634

node045.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		: 3000.265
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		: 3000.265
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	: 5599.53
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1702704 kB
Buffers:         64992 kB
Cached:         181948 kB
SwapCached:       1476 kB
Active:         129804 kB
Inactive:       150632 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1702704 kB
SwapTotal:     4192956 kB
SwapFree:      4164940 kB
Dirty:            2728 kB
Writeback:           0 kB
AnonPages:       31992 kB
Mapped:          13400 kB
Slab:            54088 kB
PageTables:       4160 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181716 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-2702037-1278546351.opb

Free space on /tmp at the end= 62520 MiB
End job on node045 at 2010-07-08 01:45:52