Trace number 1806382

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
minisat2-simp 070721UNSAT 1.89771 1.89864

General information on the benchmark

Namecrafted/Difficult/contest05/sabharwal/
grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.cnf
MD5SUM4c3b2816cb16b0fd4134bf2c85ce45d0
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.89771
Satisfiable
(Un)Satisfiability was proved
Number of variables90300
Number of clauses179702
Sum of the clauses size718202
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2300
Number of clauses of size 30
Number of clauses of size 4179400
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	This is MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  90300                                                |
0.00/0.00	|  Number of clauses:    179702                                               |
0.79/0.83	|  Parsing time:         0.81         s                                       |
1.79/1.89	restarts              : 0
1.79/1.89	conflicts             : 0              (0 /sec)
1.79/1.89	decisions             : 0              ( nan % random) (0 /sec)
1.79/1.89	propagations          : 4              (2 /sec)
1.79/1.89	conflict literals     : 0              ( nan % deleted)
1.79/1.89	Memory used           : 38.44 MB
1.79/1.89	CPU time              : 1.84472 s
1.79/1.89	
1.79/1.89	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-1806382-1242148484/watcher-1806382-1242148484 -o /tmp/evaluation-result-1806382-1242148484/solver-1806382-1242148484 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1806382-1242148484.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): 1800 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: 1.00 1.00 0.96 3/65 26714
/proc/meminfo: memFree=1707216/2055920 swapFree=4179792/4192956
[pid=26714] ppid=26712 vsize=2656 CPUtime=0
/proc/26714/stat : 26714 (minisat_static) R 26712 26714 26393 0 -1 4194304 549 0 0 0 0 0 0 0 18 0 1 0 242876191 2719744 534 1992294400 134512640 135243866 4294956256 18446744073709551615 134777998 0 0 4096 3 0 0 0 17 1 0 0
/proc/26714/statm: 732 540 62 178 0 552 0

[startup+0.0708199 s]
/proc/loadavg: 1.00 1.00 0.96 3/65 26714
/proc/meminfo: memFree=1707216/2055920 swapFree=4179792/4192956
[pid=26714] ppid=26712 vsize=12336 CPUtime=0.06
/proc/26714/stat : 26714 (minisat_static) R 26712 26714 26393 0 -1 4194304 2895 0 0 0 5 1 0 0 18 0 1 0 242876191 12632064 2798 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/26714/statm: 3084 2799 65 178 0 2904 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 12336

[startup+0.101821 s]
/proc/loadavg: 1.00 1.00 0.96 3/65 26714
/proc/meminfo: memFree=1707216/2055920 swapFree=4179792/4192956
[pid=26714] ppid=26712 vsize=13404 CPUtime=0.09
/proc/26714/stat : 26714 (minisat_static) R 26712 26714 26393 0 -1 4194304 3147 0 0 0 8 1 0 0 18 0 1 0 242876191 13725696 3050 1992294400 134512640 135243866 4294956256 18446744073709551615 134764927 0 0 4096 3 0 0 0 17 1 0 0
/proc/26714/statm: 3351 3050 65 178 0 3171 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13404

[startup+0.301841 s]
/proc/loadavg: 1.00 1.00 0.96 3/65 26714
/proc/meminfo: memFree=1707216/2055920 swapFree=4179792/4192956
[pid=26714] ppid=26712 vsize=17036 CPUtime=0.29
/proc/26714/stat : 26714 (minisat_static) R 26712 26714 26393 0 -1 4194304 4020 0 0 0 27 2 0 0 19 0 1 0 242876191 17444864 3923 1992294400 134512640 135243866 4294956256 18446744073709551615 134748151 0 0 4096 3 0 0 0 17 1 0 0
/proc/26714/statm: 4259 3923 65 178 0 4079 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 17036

[startup+0.70188 s]
/proc/loadavg: 1.00 1.00 0.96 3/65 26714
/proc/meminfo: memFree=1707216/2055920 swapFree=4179792/4192956
[pid=26714] ppid=26712 vsize=23476 CPUtime=0.69
/proc/26714/stat : 26714 (minisat_static) R 26712 26714 26393 0 -1 4194304 5596 0 0 0 67 2 0 0 22 0 1 0 242876191 24039424 5499 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/26714/statm: 5869 5499 65 178 0 5689 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 23476

[startup+1.50196 s]
/proc/loadavg: 1.00 1.00 0.96 2/66 26715
/proc/meminfo: memFree=1683592/2055920 swapFree=4179792/4192956
[pid=26714] ppid=26712 vsize=33336 CPUtime=1.49
/proc/26714/stat : 26714 (minisat_static) R 26712 26714 26393 0 -1 4194304 7980 0 0 0 145 4 0 0 25 0 1 0 242876191 34136064 7883 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/26714/statm: 8334 7883 80 178 0 8154 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 33336

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

[startup+1.70198 s]
/proc/loadavg: 1.00 1.00 0.96 2/66 26715
/proc/meminfo: memFree=1683592/2055920 swapFree=4179792/4192956
[pid=26714] ppid=26712 vsize=35976 CPUtime=1.69
/proc/26714/stat : 26714 (minisat_static) R 26712 26714 26393 0 -1 4194304 8755 0 0 0 165 4 0 0 25 0 1 0 242876191 36839424 8658 1992294400 134512640 135243866 4294956256 18446744073709551615 134550572 0 0 4096 3 0 0 0 17 1 0 0
/proc/26714/statm: 8994 8658 80 178 0 8814 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 35976

[startup+1.80199 s]
/proc/loadavg: 1.00 1.00 0.96 2/66 26715
/proc/meminfo: memFree=1683592/2055920 swapFree=4179792/4192956
[pid=26714] ppid=26712 vsize=37428 CPUtime=1.79
/proc/26714/stat : 26714 (minisat_static) R 26712 26714 26393 0 -1 4194304 9152 0 0 0 175 4 0 0 25 0 1 0 242876191 38326272 9055 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/26714/statm: 9357 9056 80 178 0 9177 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 37428

Child status: 20
Real time (s): 1.89864
CPU time (s): 1.89771
CPU user time (s): 1.84472
CPU system time (s): 0.052991
CPU usage (%): 99.9512
Max. virtual memory (cumulated for all children) (KiB): 37428

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.84472
system time used= 0.052991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9529
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= 5

runsolver used 0.005999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node56 at 2009-05-12 19:14:44
IDJOB=1806382
IDBENCH=24728
IDSOLVER=568
FILE ID=node56/1806382-1242148484
PBS_JOBID= 9289668
Free space on /tmp= 102972 MiB

SOLVER NAME= minisat2-simp 070721
BENCH NAME= SAT07/crafted/Difficult/contest05/sabharwal/grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1806382-1242148484/watcher-1806382-1242148484 -o /tmp/evaluation-result-1806382-1242148484/solver-1806382-1242148484 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1806382-1242148484.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 4c3b2816cb16b0fd4134bf2c85ce45d0
RANDOM SEED=1420091308

node56.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		: 3000.218
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		: 3000.218
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:       1707632 kB
Buffers:         42896 kB
Cached:         229540 kB
SwapCached:       7316 kB
Active:          77440 kB
Inactive:       204304 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1707632 kB
SwapTotal:     4192956 kB
SwapFree:      4179792 kB
Dirty:            5644 kB
Writeback:           0 kB
Mapped:          14544 kB
Slab:            52504 kB
Committed_AS:   804796 kB
PageTables:       1472 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= 102968 MiB
End job on node56 at 2009-05-12 19:14:46