Trace number 35581

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, and are wall clock time (not CPU 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
minisat+ 1.14OPT20 2.01369 2.01867

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB05/
sorensson/garden/normalized-g9x9.opb
MD5SUM4b56e6775cc4a081c8696ef0fa81b784
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark20
Best CPU time to get the best result obtained on this benchmark0.227964
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 20
Optimality of the best value was proved YES
Number of variables81
Total number of constraints81
Number of constraints which are clauses81
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 constraint3
Maximum length of a constraint5
Number of terms in the objective function 81
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 81
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 81
Number of bits of the biggest sum of numbers7
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 (download as text)

0.00	c Parsing PB file...
0.00	c Converting 81 PB-constraints to clauses...
0.00	c   -- Unit propagations: (none)
0.00	c   -- Detecting intervals from adjacent constraints: (none)
0.00	c   -- Clauses(.)/Splits(s): .................................................................................
0.00	c ==================================[MINISAT+]==================================
0.00	c | Conflicts | Original         | Learnt                           | Progress |
0.00	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.00	c ==============================================================================
0.00	c |         0 |      81      369 |      27       0        0     nan |  0.000 % |
0.00	c ==============================================================================
0.00	c Found solution: 27
0.00	o 27
0.00	c ---[   0]---> Sorter-cost: 1728     Base:
0.01	c ==================================[MINISAT+]==================================
0.01	c | Conflicts | Original         | Learnt                           | Progress |
0.01	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.01	c ==============================================================================
0.01	c |         0 |    1989     4836 |     663       0        0     nan |  0.000 % |
0.02	c ==============================================================================
0.02	c Found solution: 26
0.02	o 26
0.02	c ---[   0]---> Sorter-cost:    0     Base:
0.02	c ==================================[MINISAT+]==================================
0.02	c | Conflicts | Original         | Learnt                           | Progress |
0.02	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.02	c ==============================================================================
0.02	c |        82 |    1995     4867 |     665      80     1121    14.0 |  0.000 % |
0.03	c |       182 |    1995     4867 |     731     180     2470    13.7 |  1.192 % |
0.04	c |       332 |    1988     4852 |     804     329     4769    14.5 |  1.416 % |
0.05	c |       558 |    1988     4852 |     885     555     8017    14.4 |  1.416 % |
0.06	c |       895 |    1988     4852 |     973     892    12277    13.8 |  1.416 % |
0.09	c ==============================================================================
0.09	c Found solution: 22
0.09	o 22
0.09	c ---[   0]---> Sorter-cost:    0     Base:
0.09	c ==================================[MINISAT+]==================================
0.09	c | Conflicts | Original         | Learnt                           | Progress |
0.09	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.09	c ==============================================================================
0.09	c |      1356 |    2020     4936 |     673     842    10937    13.0 |  1.416 % |
0.10	c |      1456 |    2012     4920 |     740     520     5408    10.4 |  1.762 % |
0.11	c |      1607 |    1996     4884 |     814     661     7323    11.1 |  2.496 % |
0.12	c ==============================================================================
0.12	c Found solution: 21
0.12	o 21
0.12	c ---[   0]---> Sorter-cost:    0     Base:
0.13	c ==================================[MINISAT+]==================================
0.13	c | Conflicts | Original         | Learnt                           | Progress |
0.13	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.13	c ==============================================================================
0.13	c |      1800 |    1959     4786 |     653     807     8760    10.9 |  2.496 % |
0.14	c |      1900 |    1959     4786 |     718     504     4452     8.8 |  4.546 % |
0.14	c ==============================================================================
0.14	c Found solution: 20
0.14	o 20
0.14	c ---[   0]---> Sorter-cost:    0     Base:
0.14	c ==================================[MINISAT+]==================================
0.14	c | Conflicts | Original         | Learnt                           | Progress |
0.14	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.14	c ==============================================================================
0.14	c |      1915 |    1971     4818 |     657     519     4716     9.1 |  4.546 % |
0.15	c |      2015 |    1971     4818 |     722     619     6346    10.3 |  4.731 % |
0.16	c |      2165 |    1971     4818 |     794     769     8952    11.6 |  4.731 % |
0.18	c |      2391 |    1971     4818 |     874     995    13232    13.3 |  4.731 % |
0.20	c |      2728 |    1971     4818 |     961     835    10695    12.8 |  4.731 % |
0.23	c |      3234 |    1971     4818 |    1058     762     8287    10.9 |  4.731 % |
0.28	c |      3995 |    1963     4802 |    1163     938    10245    10.9 |  5.022 % |
0.37	c |      5134 |    1963     4802 |    1280    1384    19349    14.0 |  5.022 % |
0.50	c |      6842 |    1963     4802 |    1408     879     9469    10.8 |  5.022 % |
0.68	c |      9404 |    1960     4795 |    1549    1099    11035    10.0 |  5.168 % |
0.96	c |     13248 |    1960     4795 |    1704    1492    15094    10.1 |  5.168 % |
1.39	c |     19015 |    1923     4701 |    1874    1573    17017    10.8 |  6.624 % |
1.98	c |     27664 |    1884     4604 |    2061    1380    11212     8.1 |  8.081 % |
2.01	c ==============================================================================
2.01	c Optimal solution: 20
2.01	s OPTIMUM FOUND
2.01	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
2.01	v 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
2.01	v -x59 -x60 -x61 -x62 x63 -x64 -x65 -x66 -x67 -x68 x69 -x70 -x71 -x72 -x73 x74 -x75 x76 -x77 -x78 -x79 x80 -x81
2.01	c _______________________________________________________________________________
2.01	c 
2.01	c restarts              : 25
2.01	c conflicts             : 28106          (13964 /sec)
2.01	c decisions             : 38538          (19147 /sec)
2.01	c propagations          : 0              (0 /sec)
2.01	c inspects              : 0              (0 /sec)
2.01	c CPU time              : 2.01269 s
2.01	c _______________________________________________________________________________

Verifier Data (download as text)

OK	20

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node20/watcher-35581-1149286171 -o ROOT/results/node20/solver-35581-1149286171 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node20/35581-1149286171/instance-35581-1149286171.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.86 0.97 0.91 2/64 27335
/proc/meminfo: memFree=1575000/2055920 swapFree=4181488/4192956
[pid=27335] ppid=27333 vsize=1048 CPUtime=0
/proc/27335/stat : 27335 (minisat+) R 27333 27335 27289 0 -1 4194304 109 0 0 0 0 0 0 0 19 0 1 0 194280207 1073152 94 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135031278 0 0 4096 16386 0 0 0 17 1 0 0
/proc/27335/statm: 262 94 74 215 0 44 0

Child status: 30
Real time (s): 2.01867
CPU time (s): 2.01369
CPU user time (s): 2.01269
CPU system time (s): 0.000999
CPU usage (%): 99.7533
Max. virtual memory (cumulated for all children) (Kb): 0

Launcher Data (download as text)

Begin job on node20 on Fri Jun  2 22:09:31 UTC 2006


FILE ID= 35581-1149286171

PBS_JOBID= 306602

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/submitted-PB05/sorensson/garden/normalized-g9x9.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node20/35581-1149286171/instance-35581-1149286171.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node20/watcher-35581-1149286171 -o ROOT/results/node20/solver-35581-1149286171 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node20/35581-1149286171/instance-35581-1149286171.opb

MD5SUM SOLVER= 490d1d4b9bbf010afe7f0af63a5a62db
MD5SUM BENCH=  4b56e6775cc4a081c8696ef0fa81b784

RANDOM SEED= 793985850


/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		: 3000.236
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
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		: 3000.236
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1575272 kB
Buffers:         26732 kB
Cached:         380876 kB
SwapCached:       3180 kB
Active:          53188 kB
Inactive:       363156 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1575272 kB
SwapTotal:     4192956 kB
SwapFree:      4181488 kB
Dirty:             312 kB
Writeback:           0 kB
Mapped:          14772 kB
Slab:            50412 kB
Committed_AS:   284684 kB
PageTables:       1432 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node20 on Fri Jun  2 22:09:33 UTC 2006