Trace number 1805766

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 070721SAT 2.42263 2.42747

General information on the benchmark

Namecrafted/Medium/contest05/others/
QG7a-gensys-ukn001.sat05-3841.reshuffled-07.cnf
MD5SUM74af041eb51b172e799baf4bb7eaa52f
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.42263
Satisfiable
(Un)Satisfiability was proved
Number of variables2737
Number of clauses18375
Sum of the clauses size129048
Maximum clause length13
Minimum clause length1
Number of clauses of size 149
Number of clauses of size 2491
Number of clauses of size 32419
Number of clauses of size 4526
Number of clauses of size 5691
Number of clauses of size over 514199

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:  2737                                                 |
0.00/0.00	|  Number of clauses:    18375                                                |
0.01/0.05	|  Parsing time:         0.04         s                                       |
0.09/0.18	============================[ Search Statistics ]==============================
0.09/0.18	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.09/0.18	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.09/0.18	===============================================================================
0.09/0.18	|         0 |    2132    12073    77654 |     4024        0    nan |  0.000 % |
0.09/0.19	|       100 |    2132    12073    77654 |     4426      100     11 |  2.083 % |
0.09/0.19	|       251 |    2132    12073    77654 |     4869      251     13 |  2.083 % |
0.19/0.20	|       476 |    2132    12073    77654 |     5356      476     14 |  2.083 % |
0.19/0.21	|       815 |    2132    12073    77654 |     5892      815     14 |  2.083 % |
0.19/0.23	|      1323 |    2132    12073    77654 |     6481     1323     14 |  2.083 % |
0.19/0.25	|      2083 |    2132    12073    77654 |     7129     2083     14 |  2.083 % |
0.19/0.29	|      3223 |    2132    12073    77654 |     7842     3223     15 |  2.083 % |
0.29/0.37	|      4932 |    2132    12073    77654 |     8626     4932     17 |  2.083 % |
0.49/0.54	|      7494 |    2132    12073    77654 |     9489     7494     18 |  2.083 % |
0.79/0.83	|     11338 |    2132    12073    77654 |    10438     6446     20 |  2.083 % |
1.39/1.45	|     17105 |    2132    12073    77654 |    11481     6904     26 |  2.083 % |
2.38/2.42	===============================================================================
2.38/2.42	restarts              : 12
2.38/2.42	conflicts             : 24516          (10157 /sec)
2.38/2.42	decisions             : 55311          (1.95 % random) (22916 /sec)
2.38/2.42	propagations          : 1477792        (612269 /sec)
2.38/2.42	conflict literals     : 605592         (28.37 % deleted)
2.38/2.42	Memory used           : 4.85 MB
2.38/2.42	CPU time              : 2.41363 s
2.38/2.42	
2.38/2.42	s SATISFIABLE
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Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1805766-1242142214/watcher-1805766-1242142214 -o /tmp/evaluation-result-1805766-1242142214/solver-1805766-1242142214 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1805766-1242142214.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: 0.00 0.04 0.58 3/64 18661
/proc/meminfo: memFree=1000440/2055924 swapFree=4180096/4192956
[pid=18661] ppid=18659 vsize=888 CPUtime=0
/proc/18661/stat : 18661 (minisat_static) R 18659 18661 18624 0 -1 4194304 75 0 0 0 0 0 0 0 20 0 1 0 242255747 909312 60 1992294400 134512640 135243866 4294956256 18446744073709551615 134774195 0 0 4096 3 0 0 0 17 1 0 0
/proc/18661/statm: 478 64 50 178 0 298 0

[startup+0.0182949 s]
/proc/loadavg: 0.00 0.04 0.58 3/64 18661
/proc/meminfo: memFree=1000440/2055924 swapFree=4180096/4192956
[pid=18661] ppid=18659 vsize=2752 CPUtime=0.01
/proc/18661/stat : 18661 (minisat_static) R 18659 18661 18624 0 -1 4194304 462 0 0 0 1 0 0 0 20 0 1 0 242255747 2818048 447 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 1 0 0
/proc/18661/statm: 688 448 65 178 0 508 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2752

[startup+0.101311 s]
/proc/loadavg: 0.00 0.04 0.58 3/64 18661
/proc/meminfo: memFree=1000440/2055924 swapFree=4180096/4192956
[pid=18661] ppid=18659 vsize=4012 CPUtime=0.09
/proc/18661/stat : 18661 (minisat_static) R 18659 18661 18624 0 -1 4194304 820 0 0 0 9 0 0 0 20 0 1 0 242255747 4108288 805 1992294400 134512640 135243866 4294956256 18446744073709551615 134535712 0 0 4096 3 0 0 0 17 1 0 0
/proc/18661/statm: 1003 805 81 178 0 823 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4012

[startup+0.30135 s]
/proc/loadavg: 0.00 0.04 0.58 3/64 18661
/proc/meminfo: memFree=1000440/2055924 swapFree=4180096/4192956
[pid=18661] ppid=18659 vsize=4144 CPUtime=0.29
/proc/18661/stat : 18661 (minisat_static) R 18659 18661 18624 0 -1 4194304 908 0 0 0 29 0 0 0 21 0 1 0 242255747 4243456 848 1992294400 134512640 135243866 4294956256 18446744073709551615 134565192 0 0 4096 3 0 0 0 17 1 0 0
/proc/18661/statm: 1036 848 87 178 0 856 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4144

[startup+0.701429 s]
/proc/loadavg: 0.00 0.04 0.58 3/64 18661
/proc/meminfo: memFree=1000440/2055924 swapFree=4180096/4192956
[pid=18661] ppid=18659 vsize=4300 CPUtime=0.69
/proc/18661/stat : 18661 (minisat_static) R 18659 18661 18624 0 -1 4194304 926 0 0 0 69 0 0 0 25 0 1 0 242255747 4403200 866 1992294400 134512640 135243866 4294956256 18446744073709551615 134572590 0 0 4096 3 0 0 0 17 1 0 0
/proc/18661/statm: 1075 866 87 178 0 895 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4300

[startup+1.50158 s]
/proc/loadavg: 0.08 0.05 0.58 2/65 18662
/proc/meminfo: memFree=997232/2055924 swapFree=4180096/4192956
[pid=18661] ppid=18659 vsize=4564 CPUtime=1.49
/proc/18661/stat : 18661 (minisat_static) R 18659 18661 18624 0 -1 4194304 1014 0 0 0 149 0 0 0 25 0 1 0 242255747 4673536 954 1992294400 134512640 135243866 4294956256 18446744073709551615 134555680 0 0 4096 3 0 0 0 17 1 0 0
/proc/18661/statm: 1141 954 87 178 0 961 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4564

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

[startup+1.90166 s]
/proc/loadavg: 0.08 0.05 0.58 2/65 18662
/proc/meminfo: memFree=997232/2055924 swapFree=4180096/4192956
[pid=18661] ppid=18659 vsize=4828 CPUtime=1.88
/proc/18661/stat : 18661 (minisat_static) R 18659 18661 18624 0 -1 4194304 1069 0 0 0 188 0 0 0 25 0 1 0 242255747 4943872 1009 1992294400 134512640 135243866 4294956256 18446744073709551615 134555970 0 0 4096 3 0 0 0 17 1 0 0
/proc/18661/statm: 1207 1009 87 178 0 1027 0
Current children cumulated CPU time (s) 1.88
Current children cumulated vsize (KiB) 4828

[startup+2.30174 s]
/proc/loadavg: 0.08 0.05 0.58 2/65 18662
/proc/meminfo: memFree=996464/2055924 swapFree=4180096/4192956
[pid=18661] ppid=18659 vsize=4960 CPUtime=2.28
/proc/18661/stat : 18661 (minisat_static) R 18659 18661 18624 0 -1 4194304 1098 0 0 0 228 0 0 0 25 0 1 0 242255747 5079040 1038 1992294400 134512640 135243866 4294956256 18446744073709551615 134566494 0 0 4096 3 0 0 0 17 1 0 0
/proc/18661/statm: 1240 1038 87 178 0 1060 0
Current children cumulated CPU time (s) 2.28
Current children cumulated vsize (KiB) 4960

[startup+2.40176 s]
/proc/loadavg: 0.08 0.05 0.58 2/65 18662
/proc/meminfo: memFree=996464/2055924 swapFree=4180096/4192956
[pid=18661] ppid=18659 vsize=4960 CPUtime=2.38
/proc/18661/stat : 18661 (minisat_static) R 18659 18661 18624 0 -1 4194304 1098 0 0 0 238 0 0 0 25 0 1 0 242255747 5079040 1038 1992294400 134512640 135243866 4294956256 18446744073709551615 134555795 0 0 4096 3 0 0 0 17 1 0 0
/proc/18661/statm: 1240 1038 87 178 0 1060 0
Current children cumulated CPU time (s) 2.38
Current children cumulated vsize (KiB) 4960

Child status: 10
Real time (s): 2.42747
CPU time (s): 2.42263
CPU user time (s): 2.41463
CPU system time (s): 0.007998
CPU usage (%): 99.8007
Max. virtual memory (cumulated for all children) (KiB): 4960

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.41463
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1109
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= 3
involuntary context switches= 7

runsolver used 0.004999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node6 at 2009-05-12 17:30:14
IDJOB=1805766
IDBENCH=24595
IDSOLVER=568
FILE ID=node6/1805766-1242142214
PBS_JOBID= 9289715
Free space on /tmp= 66228 MiB

SOLVER NAME= minisat2-simp 070721
BENCH NAME= SAT07/crafted/Medium/contest05/others/QG7a-gensys-ukn001.sat05-3841.reshuffled-07.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1805766-1242142214/watcher-1805766-1242142214 -o /tmp/evaluation-result-1805766-1242142214/solver-1805766-1242142214 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1805766-1242142214.cnf

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

MD5SUM BENCH= 74af041eb51b172e799baf4bb7eaa52f
RANDOM SEED=2080335245

node6.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		: 3000.281
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		: 3000.281
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:      2055924 kB
MemFree:       1000920 kB
Buffers:         77280 kB
Cached:         878344 kB
SwapCached:       6644 kB
Active:          98988 kB
Inactive:       864872 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1000920 kB
SwapTotal:     4192956 kB
SwapFree:      4180096 kB
Dirty:            1716 kB
Writeback:           0 kB
Mapped:          13920 kB
Slab:            77148 kB
Committed_AS:   956168 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= 66228 MiB
End job on node6 at 2009-05-12 17:30:16