Trace number 35002

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+ 1.14OPT12 33.2359 33.2513

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/www.csit.fsu.edu/
~burkardt/datasets/mps/normalized-reduced-mps-v2-20-10-maros.opb
MD5SUM6803f1153be9bf743da46b6e6a13cfbf
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark12
Best CPU time to get the best result obtained on this benchmark0.013997
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 12
Optimality of the best value was proved YES
Number of variables90
Total number of constraints6
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 constraints6
Minimum length of a constraint15
Maximum length of a constraint90
Number of terms in the objective function 90
Biggest coefficient in the objective function 168516
Number of bits for the biggest coefficient in the objective function 18
Sum of the numbers in the objective function 524354
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262133
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 524354
Number of bits of the biggest sum of numbers20
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...
0.01	c Converting 6 PB-constraints to clauses...
0.01	c   -- Unit propagations: (none)
0.01	c   -- Detecting intervals from adjacent constraints: #
0.01	c   -- Clauses(.)/Splits(s): s
0.01	c ---[   5]---> BDD-cost:   14
0.01	c ---[   3]---> Adder-cost: 122   maxlim: 15   bits: 5/4
0.01	c ---[   2]---> Adder-cost: 78   maxlim: 76   bits: 7/7
0.01	c ---[   1]---> Adder-cost: 58   maxlim: 49   bits: 6/6
0.01	c ---[   0]---> BDD-cost:   11
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 |    1701     6019 |     567       0        0     nan |  0.000 % |
0.02	c |       101 |    1693     5993 |     623     100      608     6.1 | 14.526 % |
0.02	c ==============================================================================
0.02	c Found solution: 14
0.02	o 14
0.02	c ---[   0]---> Sorter-cost: 1534     Base: 3
0.03	c ==================================[MINISAT+]==================================
0.03	c | Conflicts | Original         | Learnt                           | Progress |
0.03	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.03	c ==============================================================================
0.03	c |       143 |    5148    14071 |    1716     142      856     6.0 | 14.526 % |
0.04	c |       243 |    5148    14071 |    1887     242     1912     7.9 |  3.262 % |
0.05	c |       393 |    5148    14071 |    2076     392     3852     9.8 |  3.262 % |
0.07	c |       619 |    5148    14071 |    2283     618     6602    10.7 |  3.262 % |
0.09	c |       957 |    5086    13923 |    2512     910    10260    11.3 |  4.246 % |
0.13	c |      1463 |    5079    13908 |    2763    1414    17354    12.3 |  4.372 % |
0.22	c |      2222 |    5079    13908 |    3039    2173    34604    15.9 |  4.369 % |
0.35	c |      3361 |    5056    13856 |    3343    1719    21603    12.6 |  4.739 % |
0.55	c |      5069 |    5047    13827 |    3678    3426    61863    18.1 |  4.862 % |
0.65	c ==============================================================================
0.65	c Found solution: 12
0.65	o 12
0.65	c ---[   0]---> Sorter-cost:    2     Base: 3
0.66	c ==================================[MINISAT+]==================================
0.66	c | Conflicts | Original         | Learnt                           | Progress |
0.66	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.66	c ==============================================================================
0.66	c |      5919 |    5139    14050 |    1713    2320    37209    16.0 |  4.862 % |
0.67	c |      6019 |    5139    14050 |    1884    1260    12201     9.7 |  4.873 % |
0.69	c |      6169 |    5139    14050 |    2072    1410    13932     9.9 |  4.873 % |
0.72	c |      6394 |    5139    14050 |    2280    1635    16944    10.4 |  4.873 % |
0.75	c |      6731 |    5139    14050 |    2508    1972    23017    11.7 |  4.872 % |
0.80	c |      7237 |    5139    14050 |    2758    2478    30944    12.5 |  4.872 % |
0.89	c |      7997 |    5139    14050 |    3034    3238    43900    13.6 |  4.872 % |
1.01	c |      9136 |    5139    14050 |    3338    2758    40422    14.7 |  4.873 % |
1.21	c |     10846 |    5139    14050 |    3671    2713    38818    14.3 |  4.873 % |
1.57	c |     13410 |    5139    14050 |    4039    3241    60109    18.5 |  4.873 % |
2.05	c |     17258 |    5139    14050 |    4443    2705    41581    15.4 |  4.873 % |
2.79	c |     23025 |    5139    14050 |    4887    3641    65806    18.1 |  4.872 % |
3.87	c |     31674 |    5139    14050 |    5376    4488    70820    15.8 |  4.873 % |
5.52	c |     44648 |    5139    14050 |    5913    3161    42834    13.6 |  4.873 % |
8.01	c |     64110 |    5139    14050 |    6505    4084    55465    13.6 |  4.873 % |
11.89	c |     93302 |    5139    14050 |    7155    6271    99476    15.9 |  4.873 % |
18.12	c |    137091 |    5139    14050 |    7871    5115    74293    14.5 |  4.872 % |
27.91	c |    202776 |    5139    14050 |    8658    5404    77536    14.3 |  4.873 % |
33.24	c ==============================================================================
33.24	c Optimal solution: 12
33.24	s OPTIMUM FOUND
33.24	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
33.24	v -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
33.24	v -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
33.24	v -x81 -x82 -x83 -x84 x85 -x86 -x87 -x88 -x89 -x90
33.24	c _______________________________________________________________________________
33.24	c 
33.24	c restarts              : 29
33.24	c conflicts             : 239780         (7215 /sec)
33.24	c decisions             : 314687         (9469 /sec)
33.24	c propagations          : 0              (0 /sec)
33.24	c inspects              : 0              (0 /sec)
33.24	c CPU time              : 33.2319 s
33.24	c _______________________________________________________________________________

Verifier Data (download as text)

OK	12

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/node3/watcher-35002-1149273182 -o ROOT/results/node3/solver-35002-1149273182 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node3/35002-1149273182/instance-35002-1149273182.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.98 1.03 1.00 2/64 16405
/proc/meminfo: memFree=1235752/2055920 swapFree=4181424/4192956
[pid=16405] ppid=16403 vsize=1048 CPUtime=0
/proc/16405/stat : 16405 (minisat+) R 16403 16405 16359 0 -1 4194304 106 0 0 0 0 0 0 0 18 0 1 0 192979979 1073152 91 18446744073709551615 134512640 135395479 4294956688 18446744073709551615 134619209 0 0 4096 16386 0 0 0 17 1 0 0
/proc/16405/statm: 262 91 74 215 0 44 0

[startup+10.0019 s]
/proc/loadavg: 0.98 1.03 1.00 2/64 16405
/proc/meminfo: memFree=1234152/2055920 swapFree=4181424/4192956
[pid=16405] ppid=16403 vsize=2564 CPUtime=9.99
/proc/16405/stat : 16405 (minisat+) R 16403 16405 16359 0 -1 4194304 532 0 0 0 999 0 0 0 25 0 1 0 192979979 2625536 517 18446744073709551615 134512640 135395479 4294956688 18446744073709551615 134580732 0 0 4096 16386 0 0 0 17 1 0 0
/proc/16405/statm: 641 517 123 215 0 423 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 2564

[startup+20.0085 s]
/proc/loadavg: 0.98 1.03 1.00 2/64 16405
/proc/meminfo: memFree=1233896/2055920 swapFree=4181424/4192956
[pid=16405] ppid=16403 vsize=2832 CPUtime=20
/proc/16405/stat : 16405 (minisat+) R 16403 16405 16359 0 -1 4194304 606 0 0 0 2000 0 0 0 25 0 1 0 192979979 2899968 591 18446744073709551615 134512640 135395479 4294956688 18446744073709551615 134580798 0 0 4096 16386 0 0 0 17 1 0 0
/proc/16405/statm: 708 591 123 215 0 490 0
Current children cumulated CPU time (s) 20
Current children cumulated vsize (Kb) 2832

[startup+30.0162 s]
/proc/loadavg: 0.99 1.03 1.00 2/64 16405
/proc/meminfo: memFree=1233832/2055920 swapFree=4181424/4192956
[pid=16405] ppid=16403 vsize=2960 CPUtime=30
/proc/16405/stat : 16405 (minisat+) R 16403 16405 16359 0 -1 4194304 639 0 0 0 3000 0 0 0 25 0 1 0 192979979 3031040 624 18446744073709551615 134512640 135395479 4294956688 18446744073709551615 134575416 0 0 4096 16386 0 0 0 17 1 0 0
/proc/16405/statm: 740 624 123 215 0 522 0
Current children cumulated CPU time (s) 30
Current children cumulated vsize (Kb) 2960

Child status: 30
Real time (s): 33.2513
CPU time (s): 33.2359
CPU user time (s): 33.2329
CPU system time (s): 0.002999
CPU usage (%): 99.9539
Max. virtual memory (cumulated for all children) (Kb): 2960

Launcher Data (download as text)

Begin job on node3 on Fri Jun  2 18:33:03 UTC 2006


FILE ID= 35002-1149273182

PBS_JOBID= 299074

BENCH NAME= ROOT/tmp/node3/35002-1149273182/instance-35002-1149273182.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node3/35002-1149273182/instance-35002-1149273182.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-35002-1149273182 -o ROOT/results/node3/solver-35002-1149273182 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node3/35002-1149273182/instance-35002-1149273182.opb

MD5SUM SOLVER= 490d1d4b9bbf010afe7f0af63a5a62db
MD5SUM BENCH=  6803f1153be9bf743da46b6e6a13cfbf

RANDOM SEED= 587882169


/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		: 3000.261
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		: 3000.261
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:       1235960 kB
Buffers:         33212 kB
Cached:         713148 kB
SwapCached:       3612 kB
Active:         146712 kB
Inactive:       608744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1235960 kB
SwapTotal:     4192956 kB
SwapFree:      4181424 kB
Dirty:             176 kB
Writeback:           0 kB
Mapped:          14932 kB
Slab:            50520 kB
Committed_AS:   245332 kB
PageTables:       1408 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node3 on Fri Jun  2 18:33:36 UTC 2006