Trace number 35233

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+ 1.14OPT30 22.0666 22.0756

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/
miplib/normalized-mps-v2-20-10-stein45.opb
MD5SUM5084bd7d25dcb1d535d550da78b2db16
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark30
Best CPU time to get the best result obtained on this benchmark22.0666
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 30
Optimality of the best value was proved YES
Number of variables45
Total number of constraints331
Number of constraints which are clauses330
Number of constraints which are cardinality constraints (but not clauses)1
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint45
Number of terms in the objective function 45
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 45
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 22
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 67
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...
0.01	c Converting 331 PB-constraints to clauses...
0.01	c   -- Unit propagations: (none)
0.01	c   -- Detecting intervals from adjacent constraints: (none)
0.01	c   -- Clauses(.)/Splits(s): ..........................................................................................................................................................................................................................................................................................................................................
0.01	c ---[   0]---> Sorter-cost:  718     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 |    1097     2792 |     365       0        0     nan |  0.000 % |
0.01	c ==============================================================================
0.01	c Found solution: 40
0.01	o 40
0.01	c ---[   0]---> Sorter-cost:  288     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 |    1772     4390 |     590       0        0     nan |  0.000 % |
0.02	c ==============================================================================
0.02	c Found solution: 32
0.02	o 32
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 |        23 |    1816     4508 |     605      20       64     3.2 |  0.000 % |
0.02	c |       123 |    1816     4508 |     665     120      689     5.7 |  2.393 % |
0.03	c |       274 |    1816     4508 |     732     271     3236    11.9 |  2.397 % |
0.04	c |       500 |    1798     4467 |     805     492     5424    11.0 |  3.140 % |
0.05	c ==============================================================================
0.05	c Found solution: 31
0.05	o 31
0.05	c ---[   0]---> Sorter-cost:    0     Base:
0.06	c ==================================[MINISAT+]==================================
0.06	c | Conflicts | Original         | Learnt                           | Progress |
0.06	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.06	c ==============================================================================
0.06	c |       795 |    1767     4396 |     589     686     8277    12.1 |  3.140 % |
0.06	c |       895 |    1767     4396 |     647     443     5567    12.6 |  5.218 % |
0.07	c |      1046 |    1767     4396 |     712     594     8074    13.6 |  5.217 % |
0.09	c |      1272 |    1767     4396 |     783     820    11824    14.4 |  5.217 % |
0.11	c |      1609 |    1767     4396 |     862     747    10448    14.0 |  5.217 % |
0.14	c |      2115 |    1767     4396 |     948     731     9638    13.2 |  5.217 % |
0.19	c |      2875 |    1767     4396 |    1043     897    12141    13.5 |  5.220 % |
0.26	c |      4015 |    1737     4327 |    1147     800     9680    12.1 |  6.561 % |
0.38	c |      5724 |    1727     4304 |    1262    1086    14126    13.0 |  7.006 % |
0.43	c ==============================================================================
0.43	c Found solution: 30
0.43	o 30
0.43	c ---[   0]---> Sorter-cost:    0     Base:
0.43	c ==================================[MINISAT+]==================================
0.43	c | Conflicts | Original         | Learnt                           | Progress |
0.43	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.43	c ==============================================================================
0.43	c |      6467 |    1739     4339 |     579    1073    13099    12.2 |  7.006 % |
0.44	c |      6569 |    1739     4339 |     636     639     7004    11.0 |  7.618 % |
0.45	c |      6720 |    1739     4339 |     700     790     8964    11.3 |  7.615 % |
0.46	c |      6945 |    1725     4308 |     770     617     6606    10.7 |  8.639 % |
0.49	c |      7285 |    1725     4308 |     847     957    10581    11.1 |  8.639 % |
0.52	c |      7793 |    1725     4308 |     932     987    10702    10.8 |  8.639 % |
0.57	c |      8552 |    1725     4308 |    1025     610     5731     9.4 |  8.641 % |
0.64	c |      9692 |    1712     4280 |    1128    1107    13530    12.2 |  9.373 % |
0.76	c |     11401 |    1712     4280 |    1241     767     7436     9.7 |  9.373 % |
0.91	c |     13963 |    1686     4221 |    1365    1103    13068    11.8 | 10.692 % |
1.16	c |     17808 |    1686     4221 |    1501     910    10940    12.0 | 10.692 % |
1.54	c |     23574 |    1686     4221 |    1651    1369    16394    12.0 | 10.690 % |
2.11	c |     32224 |    1668     4181 |    1817    1315    15734    12.0 | 11.717 % |
2.95	c |     45198 |    1668     4181 |    1998    1834    27233    14.8 | 11.717 % |
4.24	c |     64659 |    1668     4181 |    2198    2067    25922    12.5 | 11.720 % |
6.22	c |     93851 |    1668     4181 |    2418    1642    19947    12.1 | 11.720 % |
9.26	c |    137640 |    1668     4181 |    2660    2416    30430    12.6 | 11.742 % |
13.97	c |    203325 |    1614     4041 |    2926    2763    37369    13.5 | 13.332 % |
20.93	c |    301851 |    1331     3332 |    3219    1835    18651    10.2 | 23.574 % |
22.07	c ==============================================================================
22.07	c Optimal solution: 30
22.07	s OPTIMUM FOUND
22.07	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
22.07	v x35 x36 -x37 x38 -x39 x40 -x41 x42 x43 x44 -x45
22.07	c _______________________________________________________________________________
22.07	c 
22.07	c restarts              : 34
22.07	c conflicts             : 319012         (14459 /sec)
22.07	c decisions             : 357671         (16211 /sec)
22.07	c propagations          : 0              (0 /sec)
22.07	c inspects              : 0              (0 /sec)
22.07	c CPU time              : 22.0636 s
22.07	c _______________________________________________________________________________

Verifier Data (download as text)

OK	30

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/node79/watcher-35233-1149368913 -o ROOT/results/node79/solver-35233-1149368913 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node79/35233-1149368913/instance-35233-1149368913.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.47 0.82 0.92 3/67 7551
/proc/meminfo: memFree=1746456/2055892 swapFree=4085416/4096564
[pid=7551] ppid=7549 vsize=1048 CPUtime=0
/proc/7551/stat : 7551 (minisat+) R 7549 7551 7505 0 -1 4194304 108 0 0 0 0 0 0 0 18 0 1 0 202529895 1073152 94 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134618678 0 0 4096 16386 0 0 0 17 1 0 0
/proc/7551/statm: 262 94 74 215 0 44 0

[startup+10.0026 s]
/proc/loadavg: 0.55 0.83 0.92 2/67 7551
/proc/meminfo: memFree=1745576/2055892 swapFree=4085416/4096564
[pid=7551] ppid=7549 vsize=1852 CPUtime=9.99
/proc/7551/stat : 7551 (minisat+) R 7549 7551 7505 0 -1 4194304 338 0 0 0 999 0 0 0 25 0 1 0 202529895 1896448 324 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134580921 0 0 4096 16386 0 0 0 17 1 0 0
/proc/7551/statm: 463 324 110 215 0 245 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 1852

[startup+20.0086 s]
/proc/loadavg: 0.62 0.83 0.92 2/67 7551
/proc/meminfo: memFree=1745528/2055892 swapFree=4085416/4096564
[pid=7551] ppid=7549 vsize=1984 CPUtime=20
/proc/7551/stat : 7551 (minisat+) R 7549 7551 7505 0 -1 4194304 378 0 0 0 2000 0 0 0 25 0 1 0 202529895 2031616 364 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134580943 0 0 4096 16386 0 0 0 17 1 0 0
/proc/7551/statm: 496 364 110 215 0 278 0
Current children cumulated CPU time (s) 20
Current children cumulated vsize (Kb) 1984

Child status: 30
Real time (s): 22.0756
CPU time (s): 22.0666
CPU user time (s): 22.0636
CPU system time (s): 0.002999
CPU usage (%): 99.9592
Max. virtual memory (cumulated for all children) (Kb): 1984

Launcher Data (download as text)

Begin job on node79 on Sat Jun  3 21:08:33 UTC 2006


FILE ID= 35233-1149368913

PBS_JOBID= 312071

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-stein45.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node79/35233-1149368913/instance-35233-1149368913.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node79/watcher-35233-1149368913 -o ROOT/results/node79/solver-35233-1149368913 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node79/35233-1149368913/instance-35233-1149368913.opb

MD5SUM SOLVER= 490d1d4b9bbf010afe7f0af63a5a62db
MD5SUM BENCH=  5084bd7d25dcb1d535d550da78b2db16

RANDOM SEED= 956973768


/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		: 3000.234
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	: 6006.18
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		: 3000.234
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	: 5999.42
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055892 kB
MemFree:       1746600 kB
Buffers:         30284 kB
Cached:         217488 kB
SwapCached:       2400 kB
Active:          50928 kB
Inactive:       205568 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055892 kB
LowFree:       1746600 kB
SwapTotal:     4096564 kB
SwapFree:      4085416 kB
Dirty:             288 kB
Writeback:           0 kB
Mapped:          16668 kB
Slab:            39400 kB
Committed_AS:   347052 kB
PageTables:       1304 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node79 on Sat Jun  3 21:08:55 UTC 2006