Trace number 1732663

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
march_nn nnSAT 60.0239 60.0436

General information on the benchmark

NameCRAFTED/ramseycube/
Q3inK09.cnf
MD5SUM167bdfed21466d25646b3f9481920143
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.024995
Satisfiable
(Un)Satisfiability was proved
Number of variables36
Number of clauses15120
Sum of the clauses size181440
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 515120

Solver Data 

59.67/59.73	c main():: ***                                   [ march satisfiability solver ]                                   ***
59.67/59.73	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
59.67/59.73	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
59.67/59.73	c main()::
59.67/59.73	c initFormula():: searching for DIMACS p-line....
59.67/59.73	c full lookahead due to high density!
59.67/59.73	c initFormula():: the DIMACS p-line indicates a CNF of 36 variables and 15120 clauses.
59.67/59.73	c parseCNF():: parsing....
59.67/59.73	c parseCNF():: the CNF contains 0 unary clauses.
59.67/59.73	c runParser():: parsing was successful, warming up engines...
59.67/59.73	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
59.67/59.73	c preprocessing fase I completed:: there are now 36 free variables and 15120 clauses.
59.67/59.73	c stat :: sign balance is biased by 0.000
59.67/59.73	c using k-SAT heuristics (size based diff)
59.67/59.73	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
59.67/59.73	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
59.67/59.73	c main():: clause / variable ratio: ( 15120 / 36 ) = 420.00
59.67/59.73	c longest clause has size 12
59.67/59.73	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
59.67/59.73	c number of free variables = 36
59.67/59.73	c dynamic_preselect_setsize :: off
59.67/59.73	c main():: all systems go!
59.67/59.73	c |----------------------------------------------------------------|
59.97/60.04	c |0000000000000000000000000000$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
59.97/60.04	
c |
59.97/60.04	c
59.97/60.04	c main():: nodeCount: 28
59.97/60.04	c main():: dead ends in main: 0
59.97/60.04	c main():: lookAheadCount: 1232
59.97/60.04	c main():: unitResolveCount: 27
59.97/60.04	c main():: time=60.020000
59.97/60.04	c main():: necessary_assignments: 0
59.97/60.04	c main():: bin_sat: 0, bin_unsat 0
59.97/60.04	c main():: doublelook: #: 168, succes #: 0
59.97/60.04	c main():: doublelook: overall 13.636 of all possible doublelooks executed
59.97/60.04	c main():: doublelook: succesrate: 0.000, average DL_trigger: 0.015
59.97/60.04	c main():: SOLUTION VERIFIED :-)
59.97/60.04	s SATISFIABLE
59.97/60.04	v 3 -4 -7 10 11 13 14 15 16 17 18 19 -20 21 22 -23 -24 -25 26 -27 -29 -30 -31 -33 -34 -35 36 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-1732663-1240782593/watcher-1732663-1240782593 -o /tmp/evaluation-result-1732663-1240782593/solver-1732663-1240782593 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1732663-1240782593.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
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: 1.00 1.00 1.07 3/64 14397
/proc/meminfo: memFree=878800/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=968 CPUtime=0
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 112 0 0 0 0 0 0 0 18 0 1 0 106286870 991232 97 1992294400 134512640 135197250 4294956224 18446744073709551615 134697286 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 242 97 58 167 0 73 0

[startup+0.021886 s]
/proc/loadavg: 1.00 1.00 1.07 3/64 14397
/proc/meminfo: memFree=878800/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=1232 CPUtime=0.02
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 176 0 0 0 2 0 0 0 18 0 1 0 106286870 1261568 161 1992294400 134512640 135197250 4294956224 18446744073709551615 134718462 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 308 161 58 167 0 139 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1232

[startup+0.101895 s]
/proc/loadavg: 1.00 1.00 1.07 3/64 14397
/proc/meminfo: memFree=878800/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=3760 CPUtime=0.09
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 1104 0 0 0 9 0 0 0 18 0 1 0 106286870 3850240 620 1992294400 134512640 135197250 4294956224 18446744073709551615 134560973 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 940 621 66 167 0 771 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3760

[startup+0.301917 s]
/proc/loadavg: 1.00 1.00 1.07 3/64 14397
/proc/meminfo: memFree=878800/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=3860 CPUtime=0.29
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 4291 0 0 0 28 1 0 0 19 0 1 0 106286870 3952640 764 1992294400 134512640 135197250 4294956224 18446744073709551615 134539469 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 965 764 81 167 0 796 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3860

[startup+0.701962 s]
/proc/loadavg: 1.00 1.00 1.07 3/64 14397
/proc/meminfo: memFree=878800/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=3860 CPUtime=0.69
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 4291 0 0 0 68 1 0 0 22 0 1 0 106286870 3952640 764 1992294400 134512640 135197250 4294956224 18446744073709551615 134578117 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 965 764 81 167 0 796 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3860

[startup+1.50105 s]
/proc/loadavg: 1.00 1.00 1.07 2/65 14398
/proc/meminfo: memFree=876104/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=3860 CPUtime=1.48
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 4291 0 0 0 147 1 0 0 25 0 1 0 106286870 3952640 764 1992294400 134512640 135197250 4294956224 18446744073709551615 134578131 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 965 764 81 167 0 796 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 3860

[startup+3.10124 s]
/proc/loadavg: 1.00 1.00 1.07 2/65 14398
/proc/meminfo: memFree=875976/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=3860 CPUtime=3.08
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 4291 0 0 0 307 1 0 0 25 0 1 0 106286870 3952640 764 1992294400 134512640 135197250 4294956224 18446744073709551615 134539469 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 965 764 81 167 0 796 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 3860

[startup+6.3016 s]
/proc/loadavg: 1.00 1.00 1.07 2/65 14398
/proc/meminfo: memFree=875912/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=3860 CPUtime=6.28
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 4291 0 0 0 627 1 0 0 25 0 1 0 106286870 3952640 764 1992294400 134512640 135197250 4294956224 18446744073709551615 134539469 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 965 764 81 167 0 796 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 3860

[startup+12.7013 s]
/proc/loadavg: 1.00 1.00 1.07 2/65 14398
/proc/meminfo: memFree=875856/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=3860 CPUtime=12.68
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 4291 0 0 0 1267 1 0 0 25 0 1 0 106286870 3952640 764 1992294400 134512640 135197250 4294956224 18446744073709551615 134539469 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 965 764 81 167 0 796 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 3860

[startup+25.5018 s]
/proc/loadavg: 1.00 1.00 1.07 2/65 14398
/proc/meminfo: memFree=875856/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=3860 CPUtime=25.49
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 4291 0 0 0 2547 2 0 0 25 0 1 0 106286870 3952640 764 1992294400 134512640 135197250 4294956224 18446744073709551615 134539457 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 965 764 81 167 0 796 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 3860

[startup+51.1017 s]
/proc/loadavg: 1.00 1.00 1.07 2/65 14398
/proc/meminfo: memFree=875856/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=3860 CPUtime=51.08
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 4291 0 0 0 5106 2 0 0 25 0 1 0 106286870 3952640 764 1992294400 134512640 135197250 4294956224 18446744073709551615 134539469 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 965 764 81 167 0 796 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 3860

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

[startup+54.3011 s]
/proc/loadavg: 1.00 1.00 1.07 2/65 14398
/proc/meminfo: memFree=875856/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=3860 CPUtime=54.28
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 4291 0 0 0 5426 2 0 0 25 0 1 0 106286870 3952640 764 1992294400 134512640 135197250 4294956224 18446744073709551615 134578126 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 965 764 81 167 0 796 0
Current children cumulated CPU time (s) 54.28
Current children cumulated vsize (KiB) 3860

[startup+57.5014 s]
/proc/loadavg: 1.00 1.00 1.07 2/65 14398
/proc/meminfo: memFree=875856/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=3860 CPUtime=57.48
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 4291 0 0 0 5746 2 0 0 25 0 1 0 106286870 3952640 764 1992294400 134512640 135197250 4294956224 18446744073709551615 134578126 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 965 764 81 167 0 796 0
Current children cumulated CPU time (s) 57.48
Current children cumulated vsize (KiB) 3860

[startup+59.1016 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 14398
/proc/meminfo: memFree=875856/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=3860 CPUtime=59.08
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 4291 0 0 0 5906 2 0 0 25 0 1 0 106286870 3952640 764 1992294400 134512640 135197250 4294956224 18446744073709551615 134578096 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 965 764 81 167 0 796 0
Current children cumulated CPU time (s) 59.08
Current children cumulated vsize (KiB) 3860

[startup+59.5017 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 14398
/proc/meminfo: memFree=875856/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=3860 CPUtime=59.47
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 4291 0 0 0 5945 2 0 0 25 0 1 0 106286870 3952640 764 1992294400 134512640 135197250 4294956224 18446744073709551615 134578117 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 965 764 81 167 0 796 0
Current children cumulated CPU time (s) 59.47
Current children cumulated vsize (KiB) 3860

[startup+59.9017 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 14398
/proc/meminfo: memFree=875856/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=5268 CPUtime=59.87
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 6332 0 0 0 5985 2 0 0 25 0 1 0 106286870 5394432 855 1992294400 134512640 135197250 4294956224 18446744073709551615 134603250 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 1317 855 90 167 0 1148 0
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (KiB) 5268

[startup+60.0017 s]
/proc/loadavg: 1.00 1.00 1.06 2/65 14398
/proc/meminfo: memFree=875856/2055920 swapFree=4192956/4192956
[pid=14397] ppid=14395 vsize=5268 CPUtime=59.97
/proc/14397/stat : 14397 (march_nn) R 14395 14397 13931 0 -1 4194304 6332 0 0 0 5995 2 0 0 25 0 1 0 106286870 5394432 855 1992294400 134512640 135197250 4294956224 18446744073709551615 134539117 0 0 4096 0 0 0 0 17 1 0 0
/proc/14397/statm: 1317 855 90 167 0 1148 0
Current children cumulated CPU time (s) 59.97
Current children cumulated vsize (KiB) 5268

Child status: 10
Real time (s): 60.0436
CPU time (s): 60.0239
CPU user time (s): 59.9959
CPU system time (s): 0.027995
CPU usage (%): 99.9672
Max. virtual memory (cumulated for all children) (KiB): 5268

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 59.9959
system time used= 0.027995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6336
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= 169

runsolver used 0.045993 second user time and 0.132979 second system time

The end

Launcher Data 

Begin job on node62 at 2009-04-26 23:49:53
IDJOB=1732663
IDBENCH=71125
IDSOLVER=522
FILE ID=node62/1732663-1240782593
PBS_JOBID= 9187225
Free space on /tmp= 66376 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/CRAFTED/ramseycube/Q3inK09.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1732663-1240782593/watcher-1732663-1240782593 -o /tmp/evaluation-result-1732663-1240782593/solver-1732663-1240782593 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1732663-1240782593.cnf

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

MD5SUM BENCH= 167bdfed21466d25646b3f9481920143
RANDOM SEED=1830929427

node62.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		: 3000.220
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		: 3000.220
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:        879280 kB
Buffers:         93392 kB
Cached:         973732 kB
SwapCached:          0 kB
Active:         300284 kB
Inactive:       782312 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        879280 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:            1552 kB
Writeback:           0 kB
Mapped:          25220 kB
Slab:            79824 kB
Committed_AS:   244892 kB
PageTables:       1456 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 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 node62 at 2009-04-26 23:50:53