Trace number 34507

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 NameAnswerCPU timeWall clock time
minisat+ 1.14SAT 3.71743 3.72204

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/reduced/submitted-PB06/
manquiho/Aardal_1/normalized-reduced-prob3.opb
MD5SUMb3ff424e426ab0994aca8d3bcff33b55
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.006998
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables52
Total number of constraints2
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 constraints2
Minimum length of a constraint52
Maximum length of a constraint52
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 39163
Number of bits of the biggest number in a constraint 16
Biggest sum of numbers in a constraint 524314
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

Solver Data (download as text)

0.00	c Parsing PB file...
0.00	c Converting 2 PB-constraints to clauses...
0.00	c   -- Unit propagations: (none)
0.00	c   -- Detecting intervals from adjacent constraints: #
0.00	c   -- Clauses(.)/Splits(s): (none)
0.00	c ---[   0]---> Adder-cost: 646   maxlim: 39163   bits: 17/16
3.26	c ==================================[MINISAT+]==================================
3.26	c | Conflicts | Original         | Learnt                           | Progress |
3.26	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
3.26	c ==============================================================================
3.26	c |         0 |    4366    15560 |    1455       0        0     nan |  0.000 % |
3.27	c |       100 |    4358    15534 |    1600      99     1460    14.7 |  5.783 % |
3.27	c |       252 |    4358    15534 |    1760     251     5919    23.6 |  5.783 % |
3.29	c |       479 |    4358    15534 |    1936     478    15299    32.0 |  5.783 % |
3.33	c |       816 |    4358    15534 |    2130     815    28501    35.0 |  5.783 % |
3.38	c |      1322 |    4358    15534 |    2343    1321    46459    35.2 |  5.783 % |
3.47	c |      2082 |    4342    15482 |    2577    2079    77909    37.5 |  6.065 % |
3.60	c |      3223 |    4342    15482 |    2835    1775    60642    34.2 |  6.065 % |
3.71	c ==============================================================================
3.71	c SATISFIABLE: No goal function specified.
3.71	s SATISFIABLE
3.71	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
3.71	v -x31 -x32 -x33 -x34 -x35 x36 x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52
3.71	c _______________________________________________________________________________
3.71	c 
3.71	c restarts              : 8
3.71	c conflicts             : 4277           (1151 /sec)
3.71	c decisions             : 6708           (1806 /sec)
3.71	c propagations          : 0              (0 /sec)
3.71	c inspects              : 0              (0 /sec)
3.71	c CPU time              : 3.71443 s
3.71	c _______________________________________________________________________________

Verifier Data (download as text)

OK	0

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/node0/watcher-34507-1149204733 -o ROOT/results/node0/solver-34507-1149204733 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node0/34507-1149204733/instance-34507-1149204733.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.00 0.03 0.20 2/67 3668
/proc/meminfo: memFree=1696072/2055920 swapFree=4192812/4192956
[pid=3668] ppid=3666 vsize=1048 CPUtime=0
/proc/3668/stat : 3668 (minisat+) R 3666 3668 3622 0 -1 4194304 120 0 0 0 0 0 0 0 19 0 1 0 186134794 1073152 105 18446744073709551615 134512640 135395479 4294956688 18446744073709551615 134527796 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3668/statm: 262 105 85 215 0 44 0

Child status: 10
Real time (s): 3.72204
CPU time (s): 3.71743
CPU user time (s): 3.71444
CPU system time (s): 0.002999
CPU usage (%): 99.8762
Max. virtual memory (cumulated for all children) (Kb): 0

Launcher Data (download as text)

Begin job on node0 on Thu Jun  1 23:32:13 UTC 2006


FILE ID= 34507-1149204733

PBS_JOBID= 292785

BENCH NAME= ROOT/tmp/node0/34507-1149204733/instance-34507-1149204733.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node0/34507-1149204733/instance-34507-1149204733.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node0/watcher-34507-1149204733 -o ROOT/results/node0/solver-34507-1149204733 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node0/34507-1149204733/instance-34507-1149204733.opb

MD5SUM SOLVER= 490d1d4b9bbf010afe7f0af63a5a62db
MD5SUM BENCH=  b3ff424e426ab0994aca8d3bcff33b55

RANDOM SEED= 351311544


/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:       1696408 kB
Buffers:         24556 kB
Cached:         255944 kB
SwapCached:          0 kB
Active:          78892 kB
Inactive:       219892 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1696408 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             148 kB
Writeback:           0 kB
Mapped:          29168 kB
Slab:            46284 kB
Committed_AS:   131312 kB
PageTables:       1712 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node0 on Thu Jun  1 23:32:17 UTC 2006