Trace number 1732662

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_hi hiSAT 60.0169 60.0082

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 

59.60/59.69	c main():: ***                                   [ march satisfiability solver ]                                   ***
59.60/59.69	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
59.60/59.69	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
59.60/59.69	c main()::
59.60/59.69	c initFormula():: searching for DIMACS p-line....
59.60/59.69	c full lookahead due to high density!
59.60/59.69	c initFormula():: the DIMACS p-line indicates a CNF of 36 variables and 15120 clauses.
59.60/59.69	c parseCNF():: parsing....
59.60/59.69	c parseCNF():: the CNF contains 0 unary clauses.
59.60/59.69	c runParser():: parsing was successful, warming up engines...
59.60/59.69	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
59.60/59.69	c preprocessing fase I completed:: there are now 36 free variables and 15120 clauses.
59.60/59.69	c stat :: sign balance is biased by 0.000
59.60/59.69	c using k-SAT heuristics (size based diff)
59.60/59.69	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
59.60/59.69	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
59.60/59.69	c main():: clause / variable ratio: ( 15120 / 36 ) = 420.00
59.60/59.69	c longest clause has size 12
59.60/59.69	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
59.60/59.69	c number of free variables = 36
59.60/59.69	c dynamic_preselect_setsize :: off
59.60/59.69	c main():: all systems go!
59.60/59.69	c |----------------------------------------------------------------|
60.00/60.00	c |.0000000000000000000000000000$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
60.00/60.00	
c |
60.00/60.00	c
60.00/60.00	c main():: nodeCount: 28
60.00/60.00	c main():: dead ends in main: 0
60.00/60.00	c main():: lookAheadCount: 1232
60.00/60.00	c main():: unitResolveCount: 27
60.00/60.00	c main():: time=60.020000
60.00/60.00	c main():: necessary_assignments: 0
60.00/60.00	c main():: bin_sat: 0, bin_unsat 0
60.00/60.00	c main():: doublelook: #: 168, succes #: 0
60.00/60.00	c main():: doublelook: overall 13.636 of all possible doublelooks executed
60.00/60.00	c main():: doublelook: succesrate: 0.000, average DL_trigger: 0.015
60.00/60.00	c main():: SOLUTION VERIFIED :-)
60.00/60.00	s SATISFIABLE
60.00/60.00	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-1732662-1240782585/watcher-1732662-1240782585 -o /tmp/evaluation-result-1732662-1240782585/solver-1732662-1240782585 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1732662-1240782585.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: 1.02 1.01 1.00 3/64 26105
/proc/meminfo: memFree=1646032/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=968 CPUtime=0
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 111 0 0 0 0 0 0 0 18 0 1 0 106291918 991232 96 1992294400 134512640 135197378 4294956240 18446744073709551615 134697414 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 242 96 57 167 0 73 0

[startup+0.0882121 s]
/proc/loadavg: 1.02 1.01 1.00 3/64 26105
/proc/meminfo: memFree=1646032/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=2380 CPUtime=0.08
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 539 0 0 0 8 0 0 0 18 0 1 0 106291918 2437120 377 1992294400 134512640 135197378 4294956240 18446744073709551615 134694979 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 595 377 64 167 0 426 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2380

[startup+0.102207 s]
/proc/loadavg: 1.02 1.01 1.00 3/64 26105
/proc/meminfo: memFree=1646032/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=3760 CPUtime=0.09
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 1159 0 0 0 9 0 0 0 18 0 1 0 106291918 3850240 675 1992294400 134512640 135197378 4294956240 18446744073709551615 134560973 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 940 678 65 167 0 771 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3760

[startup+0.301152 s]
/proc/loadavg: 1.02 1.01 1.00 3/64 26105
/proc/meminfo: memFree=1646032/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=3860 CPUtime=0.3
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 4289 0 0 0 28 2 0 0 19 0 1 0 106291918 3952640 762 1992294400 134512640 135197378 4294956240 18446744073709551615 134539469 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 965 762 79 167 0 796 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 3860

[startup+0.701037 s]
/proc/loadavg: 1.02 1.01 1.00 3/64 26105
/proc/meminfo: memFree=1646032/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=3860 CPUtime=0.7
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 4289 0 0 0 68 2 0 0 22 0 1 0 106291918 3952640 762 1992294400 134512640 135197378 4294956240 18446744073709551615 134578126 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 965 762 79 167 0 796 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 3860

[startup+1.50181 s]
/proc/loadavg: 1.02 1.01 1.00 2/65 26106
/proc/meminfo: memFree=1643336/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=3860 CPUtime=1.5
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 4289 0 0 0 148 2 0 0 25 0 1 0 106291918 3952640 762 1992294400 134512640 135197378 4294956240 18446744073709551615 134578135 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 965 762 79 167 0 796 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 3860

[startup+3.10136 s]
/proc/loadavg: 1.02 1.01 1.00 2/65 26106
/proc/meminfo: memFree=1643208/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=3860 CPUtime=3.1
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 4289 0 0 0 308 2 0 0 25 0 1 0 106291918 3952640 762 1992294400 134512640 135197378 4294956240 18446744073709551615 134578126 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 965 762 79 167 0 796 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 3860

[startup+6.30145 s]
/proc/loadavg: 1.02 1.01 1.00 2/65 26106
/proc/meminfo: memFree=1643080/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=3860 CPUtime=6.3
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 4289 0 0 0 628 2 0 0 25 0 1 0 106291918 3952640 762 1992294400 134512640 135197378 4294956240 18446744073709551615 134539469 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 965 762 79 167 0 796 0
Current children cumulated CPU time (s) 6.3
Current children cumulated vsize (KiB) 3860

[startup+12.7016 s]
/proc/loadavg: 1.02 1.01 1.00 2/65 26106
/proc/meminfo: memFree=1643016/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=3860 CPUtime=12.7
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 4289 0 0 0 1268 2 0 0 25 0 1 0 106291918 3952640 762 1992294400 134512640 135197378 4294956240 18446744073709551615 134539457 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 965 762 79 167 0 796 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 3860

[startup+25.501 s]
/proc/loadavg: 1.01 1.01 1.00 2/65 26106
/proc/meminfo: memFree=1643016/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=3860 CPUtime=25.5
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 4289 0 0 0 2548 2 0 0 25 0 1 0 106291918 3952640 762 1992294400 134512640 135197378 4294956240 18446744073709551615 134578126 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 965 762 79 167 0 796 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 3860

[startup+51.1017 s]
/proc/loadavg: 1.01 1.01 1.00 2/65 26106
/proc/meminfo: memFree=1642952/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=3860 CPUtime=51.1
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 4289 0 0 0 5108 2 0 0 25 0 1 0 106291918 3952640 762 1992294400 134512640 135197378 4294956240 18446744073709551615 134578126 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 965 762 79 167 0 796 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 3860

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

[startup+54.3018 s]
/proc/loadavg: 1.01 1.00 1.00 2/65 26106
/proc/meminfo: memFree=1642952/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=3860 CPUtime=54.3
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 4289 0 0 0 5428 2 0 0 25 0 1 0 106291918 3952640 762 1992294400 134512640 135197378 4294956240 18446744073709551615 134578098 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 965 762 79 167 0 796 0
Current children cumulated CPU time (s) 54.3
Current children cumulated vsize (KiB) 3860

[startup+57.5019 s]
/proc/loadavg: 1.01 1.00 1.00 2/65 26106
/proc/meminfo: memFree=1642952/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=3860 CPUtime=57.5
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 4289 0 0 0 5748 2 0 0 25 0 1 0 106291918 3952640 762 1992294400 134512640 135197378 4294956240 18446744073709551615 134578126 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 965 762 79 167 0 796 0
Current children cumulated CPU time (s) 57.5
Current children cumulated vsize (KiB) 3860

[startup+59.1015 s]
/proc/loadavg: 1.01 1.00 1.00 2/65 26106
/proc/meminfo: memFree=1642952/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=3860 CPUtime=59.1
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 4289 0 0 0 5908 2 0 0 25 0 1 0 106291918 3952640 762 1992294400 134512640 135197378 4294956240 18446744073709551615 134578135 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 965 762 79 167 0 796 0
Current children cumulated CPU time (s) 59.1
Current children cumulated vsize (KiB) 3860

[startup+59.5014 s]
/proc/loadavg: 1.01 1.00 1.00 2/65 26106
/proc/meminfo: memFree=1642952/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=3860 CPUtime=59.5
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 4289 0 0 0 5948 2 0 0 25 0 1 0 106291918 3952640 762 1992294400 134512640 135197378 4294956240 18446744073709551615 134539469 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 965 762 79 167 0 796 0
Current children cumulated CPU time (s) 59.5
Current children cumulated vsize (KiB) 3860

[startup+59.9013 s]
/proc/loadavg: 1.01 1.00 1.00 2/65 26106
/proc/meminfo: memFree=1642952/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=5268 CPUtime=59.9
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 6331 0 0 0 5987 3 0 0 25 0 1 0 106291918 5394432 854 1992294400 134512640 135197378 4294956240 18446744073709551615 134524890 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 1317 854 89 167 0 1148 0
Current children cumulated CPU time (s) 59.9
Current children cumulated vsize (KiB) 5268

[startup+60.0012 s]
/proc/loadavg: 1.01 1.00 1.00 2/65 26106
/proc/meminfo: memFree=1642952/2055920 swapFree=4181368/4192956
[pid=26105] ppid=26103 vsize=5268 CPUtime=60
/proc/26105/stat : 26105 (march_hi) R 26103 26105 25913 0 -1 4194304 6331 0 0 0 5997 3 0 0 25 0 1 0 106291918 5394432 854 1992294400 134512640 135197378 4294956240 18446744073709551615 134603248 0 0 4096 0 0 0 0 17 1 0 0
/proc/26105/statm: 1317 854 89 167 0 1148 0
Current children cumulated CPU time (s) 60
Current children cumulated vsize (KiB) 5268

Child status: 10
Real time (s): 60.0082
CPU time (s): 60.0169
CPU user time (s): 59.9839
CPU system time (s): 0.032994
CPU usage (%): 100.014
Max. virtual memory (cumulated for all children) (KiB): 5268

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 59.9839
system time used= 0.032994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6335
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= 80

runsolver used 0.046992 second user time and 0.12798 second system time

The end

Launcher Data 

Begin job on node16 at 2009-04-26 23:49:45
IDJOB=1732662
IDBENCH=71125
IDSOLVER=521
FILE ID=node16/1732662-1240782585
PBS_JOBID= 9187265
Free space on /tmp= 66324 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/CRAFTED/ramseycube/Q3inK09.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1732662-1240782585/watcher-1732662-1240782585 -o /tmp/evaluation-result-1732662-1240782585/solver-1732662-1240782585 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1732662-1240782585.cnf

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

MD5SUM BENCH= 167bdfed21466d25646b3f9481920143
RANDOM SEED=434051228

node16.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		: 3000.234
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		: 3000.234
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:       1646512 kB
Buffers:         53884 kB
Cached:         300364 kB
SwapCached:       5472 kB
Active:         187908 kB
Inactive:       174296 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1646512 kB
SwapTotal:     4192956 kB
SwapFree:      4181368 kB
Dirty:            1368 kB
Writeback:           0 kB
Mapped:          13608 kB
Slab:            33248 kB
Committed_AS:   423676 kB
PageTables:       1436 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= 66320 MiB
End job on node16 at 2009-04-26 23:50:45