Trace number 1775342

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 2.1 (Sat-race'08 Edition)UNSAT 0.876865 0.877537

General information on the benchmark

Namemanol-pipe-g6bi.cnf
MD5SUM276c05fafaa0b870834db9baaef6afca
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.876865
Satisfiable
(Un)Satisfiability was proved
Number of variables23891
Number of clauses69895
Sum of the clauses size163087
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 246596
Number of clauses of size 323298
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.06/0.08	c |  Number of variables:         23891                                         |
0.06/0.08	c |  Number of clauses:           69894                                         |
0.06/0.08	c |  Parse time:                   0.07 s                                       |
0.39/0.40	c |  Simplification time:          0.31 s                                       |
0.39/0.40	c |                                                                             |
0.39/0.40	c ============================[ Search Statistics ]==============================
0.39/0.40	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.39/0.40	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.39/0.40	c ===============================================================================
0.39/0.41	c |       100 |    5031    30607   120005 |    11222       96     10 |  0.218 % |
0.39/0.42	c |       250 |    4995    30607   120005 |    12344      244     11 |  0.368 % |
0.39/0.45	c |       475 |    4989    30607   120005 |    13579      468     12 |  0.393 % |
0.39/0.47	c |       812 |    4989    30607   120005 |    14937      805     12 |  0.393 % |
0.49/0.50	c |      1318 |    4989    29420   116080 |    16430     1244     11 |  0.393 % |
0.49/0.54	c |      2077 |    4989    29420   116080 |    18074     2003     10 |  0.393 % |
0.49/0.58	c |      3216 |    4989    29420   116080 |    19881     3142     14 |  0.393 % |
0.59/0.65	c |      4924 |    4989    29420   116080 |    21869     4850     16 |  0.393 % |
0.69/0.73	c |      7486 |    4989    29420   116080 |    24056     7412     17 |  0.393 % |
0.79/0.87	c ===============================================================================
0.79/0.87	c restarts              : 45
0.79/0.87	c conflicts             : 10237          (11947 /sec)
0.79/0.87	c decisions             : 37727          (44029 /sec)
0.79/0.87	c propagations          : 962193         (1122917 /sec)
0.79/0.87	c conflict literals     : 163191         (27.93 % deleted)
0.79/0.87	c Memory used           : 14.46 MB
0.79/0.87	c CPU time              : 0.856869 s
0.79/0.87	c 
0.79/0.87	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1775342-1241224740/watcher-1775342-1241224740 -o /tmp/evaluation-result-1775342-1241224740/solver-1775342-1241224740 -C 10000 -W 12000 -M 1800 HOME/minisat HOME/instance-1775342-1241224740.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.02 0.99 0.99 2/64 26056
/proc/meminfo: memFree=1220264/2055920 swapFree=4181312/4192956
[pid=26056] ppid=26054 vsize=7760 CPUtime=0
/proc/26056/stat : 26056 (minisat) R 26054 26056 25963 0 -1 4194304 489 0 0 0 0 0 0 0 18 0 1 0 150507345 7946240 473 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/26056/statm: 1940 473 63 219 0 1718 0

[startup+0.0770779 s]
/proc/loadavg: 1.02 0.99 0.99 2/64 26056
/proc/meminfo: memFree=1220264/2055920 swapFree=4181312/4192956
[pid=26056] ppid=26054 vsize=13524 CPUtime=0.06
/proc/26056/stat : 26056 (minisat) R 26054 26056 25963 0 -1 4194304 2121 0 0 0 6 0 0 0 18 0 1 0 150507345 13848576 2003 1992294400 4194304 5092341 548682068848 18446744073709551615 4209789 0 0 4096 3 0 0 0 17 1 0 0
/proc/26056/statm: 3381 2004 63 219 0 3159 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 13524

[startup+0.102079 s]
/proc/loadavg: 1.02 0.99 0.99 2/64 26056
/proc/meminfo: memFree=1220264/2055920 swapFree=4181312/4192956
[pid=26056] ppid=26054 vsize=13784 CPUtime=0.09
/proc/26056/stat : 26056 (minisat) R 26054 26056 25963 0 -1 4194304 2297 0 0 0 9 0 0 0 18 0 1 0 150507345 14114816 2179 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/26056/statm: 3446 2179 88 219 0 3224 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13784

[startup+0.301099 s]
/proc/loadavg: 1.02 0.99 0.99 2/64 26056
/proc/meminfo: memFree=1220264/2055920 swapFree=4181312/4192956
[pid=26056] ppid=26054 vsize=15656 CPUtime=0.29
/proc/26056/stat : 26056 (minisat) R 26054 26056 25963 0 -1 4194304 3027 0 0 0 28 1 0 0 19 0 1 0 150507345 16031744 2909 1992294400 4194304 5092341 548682068848 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/26056/statm: 3914 2909 88 219 0 3692 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15656

[startup+0.70114 s]
/proc/loadavg: 1.02 0.99 0.99 2/64 26056
/proc/meminfo: memFree=1220264/2055920 swapFree=4181312/4192956
[pid=26056] ppid=26054 vsize=14808 CPUtime=0.69
/proc/26056/stat : 26056 (minisat) R 26054 26056 25963 0 -1 4194304 3366 0 0 0 68 1 0 0 22 0 1 0 150507345 15163392 2331 1992294400 4194304 5092341 548682068848 18446744073709551615 4240611 0 0 4096 3 0 0 0 17 1 0 0
/proc/26056/statm: 3702 2331 103 219 0 3480 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14808

Solver just ended. Dumping a history of the last processes samples

[startup+0.80215 s]
/proc/loadavg: 1.02 0.99 0.99 2/64 26056
/proc/meminfo: memFree=1220264/2055920 swapFree=4181312/4192956
[pid=26056] ppid=26054 vsize=14808 CPUtime=0.79
/proc/26056/stat : 26056 (minisat) R 26054 26056 25963 0 -1 4194304 3410 0 0 0 78 1 0 0 23 0 1 0 150507345 15163392 2375 1992294400 4194304 5092341 548682068848 18446744073709551615 4240964 0 0 4096 3 0 0 0 17 1 0 0
/proc/26056/statm: 3702 2375 103 219 0 3480 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 14808

Child status: 20
Real time (s): 0.877537
CPU time (s): 0.876865
CPU user time (s): 0.856869
CPU system time (s): 0.019996
CPU usage (%): 99.9234
Max. virtual memory (cumulated for all children) (KiB): 20000

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.856869
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3438
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 1

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node17 at 2009-05-02 02:39:00
IDJOB=1775342
IDBENCH=71734
IDSOLVER=608
FILE ID=node17/1775342-1241224740
PBS_JOBID= 9224785
Free space on /tmp= 66356 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT_RACE06/manol-pipe-g6bi.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1775342-1241224740/watcher-1775342-1241224740 -o /tmp/evaluation-result-1775342-1241224740/solver-1775342-1241224740 -C 10000 -W 12000 -M 1800  HOME/minisat HOME/instance-1775342-1241224740.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 276c05fafaa0b870834db9baaef6afca
RANDOM SEED=1959648182

node17.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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	: 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		: 3000.234
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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1221768 kB
Buffers:         79140 kB
Cached:         651348 kB
SwapCached:       5476 kB
Active:          33792 kB
Inactive:       704544 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1221768 kB
SwapTotal:     4192956 kB
SwapFree:      4181312 kB
Dirty:            2172 kB
Writeback:           0 kB
Mapped:          13532 kB
Slab:            81820 kB
Committed_AS:   667572 kB
PageTables:       1452 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66356 MiB
End job on node17 at 2009-05-02 02:39:01