Trace number 1806927

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-core 070721SAT 2.50462 2.51661

General information on the benchmark

NameCRAFTED/ramseycube/
Q3inK12.cnf
MD5SUMbcbdfe82209aa971e7a6ff7bba833b95
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.50462
Satisfiable
(Un)Satisfiability was proved
Number of variables66
Number of clauses831600
Sum of the clauses size9979200
Maximum clause length12
Minimum clause length12
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 5831600

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:  66                                                   |
0.00/0.00	|  Number of clauses:    831600                                               |
0.98/1.08	|  Parsing time:         0.96         s                                       |
1.09/1.13	============================[ Search Statistics ]==============================
1.09/1.13	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
1.09/1.13	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
1.09/1.13	===============================================================================
1.09/1.13	|         0 |      66   831600  9979200 |   277200        0    nan |  0.000 % |
2.09/2.16	|       102 |      66   831600  9979200 |   304920      102     30 |  0.023 % |
2.48/2.50	===============================================================================
2.48/2.50	restarts              : 2
2.48/2.50	conflicts             : 142            (60 /sec)
2.48/2.50	decisions             : 208            (2.40 % random) (88 /sec)
2.48/2.50	propagations          : 911            (384 /sec)
2.48/2.50	conflict literals     : 4229           (7.38 % deleted)
2.48/2.50	Memory used           : 71.24 MB
2.48/2.50	CPU time              : 2.37064 s
2.48/2.50	
2.48/2.50	s SATISFIABLE
2.48/2.50	v 1 2 3 4 -5 -6 -7 -8 -9 -10 11 -12 -13 14 -15 16 -17 -18 19 20 21 -22 -23 24 25 -26 27 28 29 -30 31 -32 33 -34 -35 36 37 38 39 -40 -41 42 43 -44 -45 -46 -47 -48 -49 -50 51 -52 -53 54 -55 -56 -57 58 -59 -60 61 -62 63 -64 65 -66 0

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-1806927-1242153563/watcher-1806927-1242153563 -o /tmp/evaluation-result-1806927-1242153563/solver-1806927-1242153563 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1806927-1242153563.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 0.97 3/64 5767
/proc/meminfo: memFree=1160168/2055920 swapFree=4181380/4192956
[pid=5767] ppid=5765 vsize=2028 CPUtime=0
/proc/5767/stat : 5767 (minisat_static) R 5765 5767 5258 0 -1 4194304 390 0 0 0 0 0 0 0 18 0 1 0 243390057 2076672 375 1992294400 134512640 135213614 4294956256 18446744073709551615 134719510 0 0 4096 3 0 0 0 17 0 0 0
/proc/5767/statm: 507 379 58 171 0 333 0

[startup+0.0230779 s]
/proc/loadavg: 1.00 1.00 0.97 3/64 5767
/proc/meminfo: memFree=1160168/2055920 swapFree=4181380/4192956
[pid=5767] ppid=5765 vsize=3240 CPUtime=0.01
/proc/5767/stat : 5767 (minisat_static) R 5765 5767 5258 0 -1 4194304 674 0 0 0 1 0 0 0 18 0 1 0 243390057 3317760 659 1992294400 134512640 135213614 4294956256 18446744073709551615 134719510 0 0 4096 3 0 0 0 17 0 0 0
/proc/5767/statm: 810 660 58 171 0 636 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 3240

[startup+0.101095 s]
/proc/loadavg: 1.00 1.00 0.97 3/64 5767
/proc/meminfo: memFree=1160168/2055920 swapFree=4181380/4192956
[pid=5767] ppid=5765 vsize=7404 CPUtime=0.09
/proc/5767/stat : 5767 (minisat_static) R 5765 5767 5258 0 -1 4194304 1713 0 0 0 8 1 0 0 18 0 1 0 243390057 7581696 1698 1992294400 134512640 135213614 4294956256 18446744073709551615 134515201 0 0 4096 3 0 0 0 17 1 0 0
/proc/5767/statm: 1851 1698 58 171 0 1677 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7404

[startup+0.301127 s]
/proc/loadavg: 1.00 1.00 0.97 3/64 5767
/proc/meminfo: memFree=1160168/2055920 swapFree=4181380/4192956
[pid=5767] ppid=5765 vsize=19396 CPUtime=0.29
/proc/5767/stat : 5767 (minisat_static) R 5765 5767 5258 0 -1 4194304 4544 0 0 0 26 3 0 0 19 0 1 0 243390057 19861504 4529 1992294400 134512640 135213614 4294956256 18446744073709551615 134736207 0 0 4096 3 0 0 0 17 1 0 0
/proc/5767/statm: 4849 4529 58 171 0 4675 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 19396

[startup+0.702178 s]
/proc/loadavg: 1.00 1.00 0.97 3/64 5767
/proc/meminfo: memFree=1160168/2055920 swapFree=4181380/4192956
[pid=5767] ppid=5765 vsize=42820 CPUtime=0.69
/proc/5767/stat : 5767 (minisat_static) R 5765 5767 5258 0 -1 4194304 10212 0 0 0 62 7 0 0 23 0 1 0 243390057 43847680 10197 1992294400 134512640 135213614 4294956256 18446744073709551615 134544138 0 0 4096 3 0 0 0 17 1 0 0
/proc/5767/statm: 10705 10197 58 171 0 10531 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 42820

[startup+1.50228 s]
/proc/loadavg: 1.00 1.00 0.97 2/65 5768
/proc/meminfo: memFree=1101216/2055920 swapFree=4181380/4192956
[pid=5767] ppid=5765 vsize=71232 CPUtime=1.49
/proc/5767/stat : 5767 (minisat_static) R 5765 5767 5258 0 -1 4194304 16934 0 0 0 137 12 0 0 25 0 1 0 243390057 72941568 16911 1992294400 134512640 135213614 4294956256 18446744073709551615 134526752 0 0 4096 3 0 0 0 17 1 0 0
/proc/5767/statm: 17808 16911 74 171 0 17634 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 71232

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

[startup+2.30138 s]
/proc/loadavg: 1.00 1.00 0.97 2/65 5768
/proc/meminfo: memFree=1091744/2055920 swapFree=4181380/4192956
[pid=5767] ppid=5765 vsize=72772 CPUtime=2.28
/proc/5767/stat : 5767 (minisat_static) R 5765 5767 5258 0 -1 4194304 17303 0 0 0 216 12 0 0 25 0 1 0 243390057 74518528 17280 1992294400 134512640 135213614 4294956256 18446744073709551615 134526976 0 0 4096 3 0 0 0 17 0 0 0
/proc/5767/statm: 18193 17280 77 171 0 18019 0
Current children cumulated CPU time (s) 2.28
Current children cumulated vsize (KiB) 72772

[startup+2.5014 s]
/proc/loadavg: 1.00 1.00 0.97 2/65 5768
/proc/meminfo: memFree=1091744/2055920 swapFree=4181380/4192956
[pid=5767] ppid=5765 vsize=72948 CPUtime=2.48
/proc/5767/stat : 5767 (minisat_static) R 5765 5767 5258 0 -1 4194304 17352 0 0 0 236 12 0 0 25 0 1 0 243390057 74698752 17329 1992294400 134512640 135213614 4294956256 18446744073709551615 134526976 0 0 4096 3 0 0 0 17 0 0 0
/proc/5767/statm: 18237 17329 77 171 0 18063 0
Current children cumulated CPU time (s) 2.48
Current children cumulated vsize (KiB) 72948

Child status: 10
Real time (s): 2.51661
CPU time (s): 2.50462
CPU user time (s): 2.37064
CPU system time (s): 0.133979
CPU usage (%): 99.5233
Max. virtual memory (cumulated for all children) (KiB): 72948

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.37064
system time used= 0.133979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17364
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= 36

runsolver used 0.008998 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node13 at 2009-05-12 20:39:26
IDJOB=1806927
IDBENCH=71130
IDSOLVER=651
FILE ID=node13/1806927-1242153563
PBS_JOBID= 9289708
Free space on /tmp= 66380 MiB

SOLVER NAME= minisat2-core 070721
BENCH NAME= SAT09/CRAFTED/ramseycube/Q3inK12.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1806927-1242153563/watcher-1806927-1242153563 -o /tmp/evaluation-result-1806927-1242153563/solver-1806927-1242153563 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1806927-1242153563.cnf

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

MD5SUM BENCH= bcbdfe82209aa971e7a6ff7bba833b95
RANDOM SEED=1536522941

node13.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		: 3000.227
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		: 3000.227
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:       1160648 kB
Buffers:         73040 kB
Cached:         739460 kB
SwapCached:       5336 kB
Active:         217000 kB
Inactive:       603888 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1160648 kB
SwapTotal:     4192956 kB
SwapFree:      4181380 kB
Dirty:           35196 kB
Writeback:           0 kB
Mapped:          14056 kB
Slab:            60360 kB
Committed_AS:   804592 kB
PageTables:       1468 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= 66376 MiB
End job on node13 at 2009-05-12 20:39:28