Trace number 332859

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 SAT 2007 (with assertions)UNSAT 2.25666 2.25878

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00250.sat05-1330.reshuffled-07.cnf
MD5SUM922dc9f32281b0c4efd640c112a641b6
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.75373
Satisfiable
(Un)Satisfiability was proved
Number of variables864
Number of clauses32700
Sum of the clauses size256765
Maximum clause length11
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 228
Number of clauses of size 3180
Number of clauses of size 4348
Number of clauses of size 51746
Number of clauses of size over 530396

Solver Data (download as text)

0.00/0.00	c This is MiniSat 2.0 (Feb 1 2007, SAT-Competition version)
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.00/0.00	c |  Number of variables:  864                                                  |
0.00/0.00	c |  Number of clauses:    32700                                                |
0.19/0.22	c |  Parsing time:         0.21         s                                       |
2.19/2.24	c restarts              : 0
2.19/2.24	c conflicts             : 0              (0 /sec)
2.19/2.24	c decisions             : 0              ( nan % random) (0 /sec)
2.19/2.24	c propagations          : 50             (22 /sec)
2.19/2.24	c conflict literals     : 0              ( nan % deleted)
2.19/2.24	c Memory used           : 8.41 MB
2.19/2.24	c CPU time              : 2.22966 s
2.19/2.24	c 
2.19/2.25	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node12/watcher-332859-1173493182 -o ROOT/results/node12/solver-332859-1173493182 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/332859-1173493182/minisat /tmp/evaluation/332859-1173493182/instance-332859-1173493182.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.83 1.81 1.42 3/77 18476
/proc/meminfo: memFree=1695272/2055920 swapFree=4156588/4192956
[pid=18476] ppid=18474 vsize=1888 CPUtime=0
/proc/18476/stat : 18476 (minisat) R 18474 18476 17897 0 -1 4194304 391 0 0 0 0 0 0 0 18 0 1 0 369272714 1933312 375 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134707275 0 0 4096 3 0 0 0 17 1 0 0
/proc/18476/statm: 472 375 58 138 0 331 0

[startup+0.081617 s]
/proc/loadavg: 1.83 1.81 1.42 3/77 18476
/proc/meminfo: memFree=1695272/2055920 swapFree=4156588/4192956
[pid=18476] ppid=18474 vsize=3532 CPUtime=0.07
/proc/18476/stat : 18476 (minisat) R 18474 18476 17897 0 -1 4194304 804 0 0 0 7 0 0 0 18 0 1 0 369272714 3616768 788 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134707275 0 0 4096 3 0 0 0 17 1 0 0
/proc/18476/statm: 883 788 58 138 0 742 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 3532

[startup+0.10162 s]
/proc/loadavg: 1.83 1.81 1.42 3/77 18476
/proc/meminfo: memFree=1695272/2055920 swapFree=4156588/4192956
[pid=18476] ppid=18474 vsize=3852 CPUtime=0.09
/proc/18476/stat : 18476 (minisat) R 18474 18476 17897 0 -1 4194304 874 0 0 0 9 0 0 0 18 0 1 0 369272714 3944448 858 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134707275 0 0 4096 3 0 0 0 17 1 0 0
/proc/18476/statm: 963 858 58 138 0 822 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3852

[startup+0.301656 s]
/proc/loadavg: 1.83 1.81 1.42 3/77 18476
/proc/meminfo: memFree=1695272/2055920 swapFree=4156588/4192956
[pid=18476] ppid=18474 vsize=5232 CPUtime=0.29
/proc/18476/stat : 18476 (minisat) R 18474 18476 17897 0 -1 4194304 1210 0 0 0 29 0 0 0 19 0 1 0 369272714 5357568 1194 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134530805 0 0 4096 3 0 0 0 17 1 0 0
/proc/18476/statm: 1308 1194 72 138 0 1167 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5232

[startup+0.701728 s]
/proc/loadavg: 1.83 1.81 1.42 3/77 18476
/proc/meminfo: memFree=1695272/2055920 swapFree=4156588/4192956
[pid=18476] ppid=18474 vsize=6224 CPUtime=0.69
/proc/18476/stat : 18476 (minisat) R 18474 18476 17897 0 -1 4194304 1459 0 0 0 69 0 0 0 23 0 1 0 369272714 6373376 1443 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134530601 0 0 4096 3 0 0 0 17 1 0 0
/proc/18476/statm: 1556 1443 72 138 0 1415 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6224

[startup+1.50187 s]
/proc/loadavg: 1.83 1.81 1.42 2/78 18477
/proc/meminfo: memFree=1689376/2055920 swapFree=4156588/4192956
[pid=18476] ppid=18474 vsize=7284 CPUtime=1.49
/proc/18476/stat : 18476 (minisat) R 18474 18476 17897 0 -1 4194304 1691 0 0 0 148 1 0 0 25 0 1 0 369272714 7458816 1675 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134530780 0 0 4096 3 0 0 0 17 1 0 0
/proc/18476/statm: 1821 1675 72 138 0 1680 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7284

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

[startup+1.90294 s]
/proc/loadavg: 1.83 1.81 1.42 2/78 18477
/proc/meminfo: memFree=1689376/2055920 swapFree=4156588/4192956
[pid=18476] ppid=18474 vsize=7684 CPUtime=1.89
/proc/18476/stat : 18476 (minisat) R 18474 18476 17897 0 -1 4194304 1813 0 0 0 188 1 0 0 25 0 1 0 369272714 7868416 1797 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134521390 0 0 4096 3 0 0 0 17 1 0 0
/proc/18476/statm: 1921 1797 72 138 0 1780 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 7684

[startup+2.10298 s]
/proc/loadavg: 1.83 1.81 1.42 2/78 18477
/proc/meminfo: memFree=1687712/2055920 swapFree=4156588/4192956
[pid=18476] ppid=18474 vsize=8352 CPUtime=2.1
/proc/18476/stat : 18476 (minisat) R 18474 18476 17897 0 -1 4194304 1926 0 0 0 209 1 0 0 25 0 1 0 369272714 8552448 1910 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134530758 0 0 4096 3 0 0 0 17 1 0 0
/proc/18476/statm: 2088 1910 72 138 0 1947 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 8352

[startup+2.206 s]
/proc/loadavg: 1.83 1.81 1.42 2/78 18477
/proc/meminfo: memFree=1687712/2055920 swapFree=4156588/4192956
[pid=18476] ppid=18474 vsize=8484 CPUtime=2.19
/proc/18476/stat : 18476 (minisat) R 18474 18476 17897 0 -1 4194304 1995 0 0 0 218 1 0 0 25 0 1 0 369272714 8687616 1979 18446744073709551615 134512640 135078472 4294956704 18446744073709551615 134530825 0 0 4096 3 0 0 0 17 1 0 0
/proc/18476/statm: 2121 1979 72 138 0 1980 0
Current children cumulated CPU time (s) 2.19
Current children cumulated vsize (KiB) 8484

Child status: 0
Real time (s): 2.25878
CPU time (s): 2.25666
CPU user time (s): 2.23966
CPU system time (s): 0.016997
CPU usage (%): 99.9061
Max. virtual memory (cumulated for all children) (KiB): 8484

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.23966
system time used= 0.016997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2045
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= 8
involuntary context switches= 46

runsolver used 0.004999 second user time and 0.010998 second system time

The end

Launcher Data (download as text)

Begin job on node12 on Sat Mar 10 02:19:43 UTC 2007

IDJOB= 332859
IDBENCH= 24590
IDSOLVER= 109
FILE ID= node12/332859-1173493182

PBS_JOBID= 4101096

Free space on /tmp= 66402 MiB

SOLVER NAME= minisat SAT 2007
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00250.sat05-1330.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/332859-1173493182/minisat /tmp/evaluation/332859-1173493182/instance-332859-1173493182.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node12/watcher-332859-1173493182 -o ROOT/results/node12/solver-332859-1173493182 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/332859-1173493182/minisat /tmp/evaluation/332859-1173493182/instance-332859-1173493182.cnf            

META MD5SUM SOLVER= 120abd248b069e44985635f055606c5a
MD5SUM BENCH=  922dc9f32281b0c4efd640c112a641b6

RANDOM SEED= 9572459

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node12.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.285
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		: 3000.285
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:       1695616 kB
Buffers:         38864 kB
Cached:         247964 kB
SwapCached:      15228 kB
Active:         187340 kB
Inactive:       122776 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1695616 kB
SwapTotal:     4192956 kB
SwapFree:      4156588 kB
Dirty:            2028 kB
Writeback:           0 kB
Mapped:          29672 kB
Slab:            35812 kB
Committed_AS:  1615420 kB
PageTables:       1692 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= 66402 MiB

End job on node12 on Sat Mar 10 02:19:45 UTC 2007