Trace number 2680853

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)OPT90 0.027994 0.028391

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/
manquinho/primes-dimacs-cnf/normalized-jnh218.opb
MD5SUMcba4f92fd2fe518316e4b3350164b448
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark90
Best CPU time to get the best result obtained on this benchmark0.085986
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 90
Optimality of the best value was proved YES
Number of variables200
Total number of constraints900
Number of constraints which are clauses900
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint11
Number of terms in the objective function 200
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 200
Number of bits of the sum of numbers in the objective function 8
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 200
Number of bits of the biggest sum of numbers8
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

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-2680853-1277454745.opb.
0.00/0.00	c Instance file HOME/instance-2680853-1277454745.opb
0.00/0.00	c File size is 38737 bytes.
0.00/0.00	c Highest Coefficient sum: 12
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Parsing time:          0.01         s                                      |
0.00/0.00	c |  Number Variables:      200                                                 |
0.00/0.00	c |  Number Clauses:        900                                                 |
0.00/0.00	c |  Number Cardinality:    0                                                   |
0.00/0.00	c |  Number PB Constraints: 0                                                   |
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 |     153      916     3994 |     5000        0    nan |  0.000 % |
0.00/0.01	c ===============================================================================
0.00/0.01	c New solution: 95
0.00/0.01	o 95
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 |        21 |     153      917     4182 |     5000       21     17 |  0.000 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c New solution: 94
0.00/0.02	o 94
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 |       109 |     153      918     4370 |     5000      109     45 |  0.000 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c New solution: 93
0.00/0.02	o 93
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 |       128 |     153      919     4558 |     5000      128     48 |  0.000 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c New solution: 92
0.00/0.02	o 92
0.00/0.02	c Elapsed CPU time: 0.020996 s	Remaining CPU time: 179.979 s
0.00/0.02	c ===============================================================================
0.00/0.02	c |       140 |     151      920     4746 |     5000      114     54 |  0.000 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c New solution: 91
0.00/0.02	o 91
0.00/0.02	c Elapsed CPU time: 0.023996 s	Remaining CPU time: 179.976 s
0.00/0.02	c ===============================================================================
0.00/0.02	c |       209 |      46      921     4934 |     5000      183     64 |  0.000 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c New solution: 90
0.00/0.02	o 90
0.00/0.02	c Elapsed CPU time: 0.024996 s	Remaining CPU time: 179.975 s
0.00/0.02	c ===============================================================================
0.00/0.02	c |       220 |      46      922     5122 |     5000      194     65 |  0.000 % |
0.00/0.02	c ===============================================================================
0.00/0.02	c Best Solution: 90
0.00/0.02	s OPTIMUM FOUND
0.00/0.02	c Total CPU time: 0.026995 s
0.00/0.02	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 -x25 x26 -x27 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 x109 -x110 x111 -x112 x113 -x114 -x115 -x116 x117 -x118 x119 -x120 x121 -x122 -x123 x124 x125 -x126 -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 x163 -x164 x165 -x166 -x167 x168 -x169 x170 -x171 x172 x173 -x174 x175 -x176 x177 -x178 -x179 x180 x181 -x182 x183 -x184 x185 -x186 -x187 -x188 -x189 -x190 x191 -x192 x193 -x194 x195 -x196 -x197 x198 x199 -x200

Verifier Data 

OK	90

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2680853-1277454745/watcher-2680853-1277454745 -o /tmp/evaluation-result-2680853-1277454745/solver-2680853-1277454745 -C 1800 -W 2000 -M 1800 wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2680853-1277454745.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: 0.91 0.95 0.90 3/105 26828
/proc/meminfo: memFree=1854464/2059040 swapFree=4139944/4192956
[pid=26828] ppid=26826 vsize=2568 CPUtime=0
/proc/26828/stat : 26828 (wbo1.4b) R 26826 26828 26658 0 -1 4202496 296 0 0 0 0 0 0 0 25 0 1 0 86768018 2629632 205 1992294400 134512640 135752675 4294038176 18446744073709551615 135207291 0 0 4096 3 0 0 0 17 1 0 0 0
/proc/26828/statm: 642 206 141 303 0 337 0

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

Child status: 0
Real time (s): 0.028391
CPU time (s): 0.027994
CPU user time (s): 0.026995
CPU system time (s): 0.000999
CPU usage (%): 98.6015
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.026995
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= 325
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 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node087 at 2010-06-25 10:32:25
IDJOB=2680853
IDBENCH=2202
IDSOLVER=1190
FILE ID=node087/2680853-1277454745
PBS_JOBID= 11188103
Free space on /tmp= 62460 MiB

SOLVER NAME= wbo 1.4b (fixed)
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/manquinho/primes-dimacs-cnf/normalized-jnh218.opb
COMMAND LINE= wbo1.4b -file-format=opb -time-limit=TIMEOUT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2680853-1277454745/watcher-2680853-1277454745 -o /tmp/evaluation-result-2680853-1277454745/solver-2680853-1277454745 -C 1800 -W 2000 -M 1800  wbo1.4b -file-format=opb -time-limit=1800 HOME/instance-2680853-1277454745.opb

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

MD5SUM BENCH= cba4f92fd2fe518316e4b3350164b448
RANDOM SEED=2083987929

node087.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	: 5999.42
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1855052 kB
Buffers:         29500 kB
Cached:          82132 kB
SwapCached:       5436 kB
Active:          20688 kB
Inactive:       103988 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1855052 kB
SwapTotal:     4192956 kB
SwapFree:      4139944 kB
Dirty:            2620 kB
Writeback:           0 kB
AnonPages:       11572 kB
Mapped:          12068 kB
Slab:            57216 kB
PageTables:       4224 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181364 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62460 MiB
End job on node087 at 2010-06-25 10:32:25