Trace number 35231

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+ 1.14OPT3089 0.503922 0.506484

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/
MIPLIB/miplib/normalized-mps-v2-20-10-p0033.opb
MD5SUMbdb886a987b9ca760f19a56a745e3c06
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3089
Best CPU time to get the best result obtained on this benchmark0.016996
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3089
Optimality of the best value was proved YES
Number of variables33
Total number of constraints15
Number of constraints which are clauses1
Number of constraints which are cardinality constraints (but not clauses)3
Number of constraints which are nor clauses,nor cardinality constraints11
Minimum length of a constraint2
Maximum length of a constraint19
Number of terms in the objective function 33
Biggest coefficient in the objective function 517
Number of bits for the biggest coefficient in the objective function 10
Sum of the numbers in the objective function 7276
Number of bits of the sum of numbers in the objective function 13
Biggest number in a constraint 1656
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 7276
Number of bits of the biggest sum of numbers13
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 15 PB-constraints to clauses...
0.00	c   -- Unit propagations: (none)
0.00	c   -- Detecting intervals from adjacent constraints: #
0.00	c   -- Clauses(.)/Splits(s): .....
0.00	c ---[  14]---> BDD-cost:    5
0.00	c ---[  13]---> BDD-cost:    3
0.00	c ---[  11]---> BDD-cost:    7
0.00	c ---[   8]---> Sorter-cost:  519     Base: 2 2 2 5 2
0.01	c ---[   6]---> BDD-cost:   13
0.01	c ---[   5]---> BDD-cost:   37
0.01	c ---[   4]---> BDD-cost:    6
0.01	c ---[   3]---> BDD-cost:   20
0.01	c ---[   1]---> BDD-cost:    6
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 |    1440     3504 |     480       0        0     nan |  0.000 % |
0.01	c ==============================================================================
0.01	c Found solution: 3660
0.01	o 3660
0.01	c ---[   0]---> Sorter-cost: 3125     Base: 3 2 2 13 2
0.07	c ==================================[MINISAT+]==================================
0.07	c | Conflicts | Original         | Learnt                           | Progress |
0.07	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.07	c ==============================================================================
0.07	c |        13 |    8945    21064 |    2981      12       44     3.7 |  0.000 % |
0.08	c ==============================================================================
0.08	c Found solution: 3453
0.08	o 3453
0.08	c ---[   0]---> Sorter-cost:    7     Base: 3 2 2 13 2
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 |        36 |    9107    21479 |    3035      35      678    19.4 |  0.000 % |
0.14	c ==============================================================================
0.14	c Found solution: 3424
0.14	o 3424
0.14	c ---[   0]---> Sorter-cost:    7     Base: 3 2 2 13 2
0.19	c ==================================[MINISAT+]==================================
0.19	c | Conflicts | Original         | Learnt                           | Progress |
0.19	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.19	c ==============================================================================
0.19	c |        80 |    9205    21727 |    3068      78      948    12.2 |  0.000 % |
0.20	c ==============================================================================
0.20	c Found solution: 3354
0.20	o 3354
0.20	c ---[   0]---> Sorter-cost:    6     Base: 3 2 2 13 2
0.25	c ==================================[MINISAT+]==================================
0.25	c | Conflicts | Original         | Learnt                           | Progress |
0.25	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.25	c ==============================================================================
0.25	c |        95 |    9243    21818 |    3081      93     1473    15.8 |  0.000 % |
0.25	c ==============================================================================
0.25	c Found solution: 3254
0.25	o 3254
0.26	c ---[   0]---> Sorter-cost:    6     Base: 3 2 2 13 2
0.31	c ==================================[MINISAT+]==================================
0.31	c | Conflicts | Original         | Learnt                           | Progress |
0.31	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.31	c ==============================================================================
0.31	c |       100 |    9288    21933 |    3096      98     1601    16.3 |  0.000 % |
0.31	c ==============================================================================
0.31	c Found solution: 3095
0.31	o 3095
0.31	c ---[   0]---> Sorter-cost:    5     Base: 3 2 2 13 2
0.36	c ==================================[MINISAT+]==================================
0.36	c | Conflicts | Original         | Learnt                           | Progress |
0.36	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.36	c ==============================================================================
0.36	c |       115 |    9305    21982 |    3101     113     1774    15.7 |  0.000 % |
0.38	c |       216 |    8685    20555 |    3411     133     1936    14.6 |  6.064 % |
0.41	c |       366 |    8531    20212 |    3752     278     4774    17.2 |  7.306 % |
0.42	c ==============================================================================
0.42	c Found solution: 3089
0.42	o 3089
0.42	c ---[   0]---> Sorter-cost: 2210     Base: 3 2 5 5 2
0.47	c ==================================[MINISAT+]==================================
0.47	c | Conflicts | Original         | Learnt                           | Progress |
0.47	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.47	c ==============================================================================
0.47	c |       394 |   13774    32465 |    4591     302     5124    17.0 |  7.306 % |
0.50	c ==============================================================================
0.50	c Optimal solution: 3089
0.50	s OPTIMUM FOUND
0.50	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
0.50	v -x33
0.50	c _______________________________________________________________________________
0.50	c 
0.50	c restarts              : 10
0.50	c conflicts             : 481            (962 /sec)
0.50	c decisions             : 1787           (3575 /sec)
0.50	c propagations          : 0              (0 /sec)
0.50	c inspects              : 0              (0 /sec)
0.50	c CPU time              : 0.499924 s
0.50	c _______________________________________________________________________________

Verifier Data (download as text)

OK	3089

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-35231-1149368849 -o ROOT/results/node79/solver-35231-1149368849 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node79/35231-1149368849/instance-35231-1149368849.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.88 0.94 0.96 2/67 6575
/proc/meminfo: memFree=1747048/2055892 swapFree=4085416/4096564
[pid=6575] ppid=6573 vsize=1052 CPUtime=0
/proc/6575/stat : 6575 (minisat+) R 6573 6575 6529 0 -1 4194304 121 0 0 0 0 0 0 0 18 0 1 0 202523499 1077248 107 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135007481 0 0 4096 16386 0 0 0 17 1 0 0
/proc/6575/statm: 263 107 88 215 0 45 0

Child status: 30
Real time (s): 0.506484
CPU time (s): 0.503922
CPU user time (s): 0.500923
CPU system time (s): 0.002999
CPU usage (%): 99.4941
Max. virtual memory (cumulated for all children) (Kb): 0

Launcher Data (download as text)

Begin job on node79 on Sat Jun  3 21:07:29 UTC 2006


FILE ID= 35231-1149368849

PBS_JOBID= 312047

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-p0033.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node79/35231-1149368849/instance-35231-1149368849.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node79/watcher-35231-1149368849 -o ROOT/results/node79/solver-35231-1149368849 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node79/35231-1149368849/instance-35231-1149368849.opb

MD5SUM SOLVER= 490d1d4b9bbf010afe7f0af63a5a62db
MD5SUM BENCH=  bdb886a987b9ca760f19a56a745e3c06

RANDOM SEED= 854074579


/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:       1747256 kB
Buffers:         30176 kB
Cached:         217120 kB
SwapCached:       2400 kB
Active:          47192 kB
Inactive:       208852 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055892 kB
LowFree:       1747256 kB
SwapTotal:     4096564 kB
SwapFree:      4085416 kB
Dirty:             184 kB
Writeback:           0 kB
Mapped:          16668 kB
Slab:            39284 kB
Committed_AS:   335456 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 21:07:29 UTC 2006