Trace number 291664

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, and are wall clock time (not CPU 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
SATzilla FULLSAT 3.00954 3.0108

General information on the benchmark

Namerandom/OnTreshold/5SAT/v80/
unif-k5-r21.3-v80-c1704-S256297823-16.SAT.shuffled.cnf
MD5SUM98acb22e903e1289d5e4bb5a28958843
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05799
Satisfiable
(Un)Satisfiability was proved
Number of variables80
Number of clauses1704
Sum of the clauses size8520
Maximum clause length5
Minimum clause length5
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 51704
Number of clauses of size over 50

Solver Data (download as text)

2.97/3.00	c run March_dl for 5 seconds ... 
2.97/3.00	c Bin: Executing march_dl
2.97/3.00	c child exited successfully
2.97/3.00	c march_dl returned code 10.
2.97/3.00	c main():: ***                                   [ march satisfiability solver ]                                   ***
2.97/3.00	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
2.97/3.00	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
2.97/3.00	c main()::
2.97/3.00	c initFormula():: searching for DIMACS p-line....
2.97/3.00	c initFormula():: the DIMACS p-line indicates a CNF of 80 variables and 1704 clauses.
2.97/3.00	c parseCNF():: parsing....
2.97/3.00	c parseCNF():: the CNF contains 0 unary clauses.
2.97/3.00	c runParser():: parsing was successful, warming up engines...
2.97/3.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
2.97/3.00	c preprocessing fase I completed:: there are now 80 free variables and 1704 clauses.
2.97/3.00	c shorten_equivalence(): average equivalence length reduced from nan to nan
2.97/3.00	c doublelook_init():: 90% succes rate goal.
2.97/3.00	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
2.97/3.00	c lessRedundantTransformation():: CHAINPLUS defined.
2.97/3.00	c lessRedundantTransformation():: the transformation yielded 972 variables and 4380 clauses.
2.97/3.00	c transformTo3SAT():: you gave me 972 variables and 4380 clauses.
2.97/3.00	c transformTo3SAT():: by the way, the maximal clause length before transformation was 5.
2.97/3.00	c transformTo3SAT():: CHAINPLUS defined.
2.97/3.00	c transformTo3SAT():: I will add 767 variables and 2301 clauses!
2.97/3.00	c transformTo3SAT():: the transformation yielded 1739 variabels and 4380 clauses.
2.97/3.00	c main():: clause / variable ratio: ( 6681 / 1739 ) = 3.84
2.97/3.00	c doublelook_init():: 90% succes rate goal.
2.97/3.00	c AddTernaryResolvents(): ternary clauses increased from 6681 to 6927
2.97/3.00	c root_subsume():: 2 ternary clauses were subsumed, nrofceq = 1
2.97/3.00	c find_and_remove_tautogolies():: found and removed 1 tautologies
2.97/3.00	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 1
2.97/3.00	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
2.97/3.00	c check_ternary_clause_density :: low
2.97/3.00	c root full lookahead
2.97/3.00	c freevars: 1738, independend: 1738, ternary clauses: 3606 
2.97/3.00	c main():: all systems go!
2.97/3.00	c |----------------------------------------------------------------|
c |
2.97/3.00	c
2.97/3.00	c main():: nodeCount: 1782
2.97/3.00	c main():: dead ends in main: 15
2.97/3.00	c main():: lookAheadCount: 153130
2.97/3.00	c main():: unitResolveCount: 115196
2.97/3.00	c main():: time=3.000000
2.97/3.00	c main():: necessary_assignments: 3473
2.97/3.00	c main():: bin_sat: 0, bin_unsat 0
2.97/3.00	c main():: doublelook: #: 2907, succes #: 2498
2.97/3.00	c main():: doublelook: succesrate: 85.931, threshold: 0.062 * nrofvars
2.97/3.00	c main():: SOLUTION VERIFIED :-)
2.97/3.00	s SATISFIABLE
2.97/3.00	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 -67 -68 -69 -70 71 72 -73 74 -75 76 77 78 -79 -80 0
2.97/3.00	c SATZILLA_TIME=3.000000

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node40/watcher-291664-1171744911 -o ROOT/results/node40/solver-291664-1171744911 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/291664-1171744911/SATzilla2007_F /tmp/evaluation/291664-1171744911/instance-291664-1171744911.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.84 0.94 0.80 3/64 31588
/proc/meminfo: memFree=837416/2055920 swapFree=4183864/4192956
[pid=31588] ppid=31586 vsize=1512 CPUtime=0
/proc/31588/stat : 31588 (SATzilla2007_F) R 31586 31588 31399 0 -1 4194304 142 0 0 0 0 0 0 0 18 0 1 0 99525487 1548288 125 18446744073709551615 134512640 135581085 4294956624 18446744073709551615 135218003 0 0 4096 0 0 0 0 17 1 0 0
/proc/31588/statm: 378 125 110 260 0 84 0
[pid=31589] ppid=31588 vsize=632 CPUtime=0
/proc/31589/stat : 31589 (march_dl) R 31588 31588 31399 0 -1 4194304 87 0 0 0 0 0 0 0 18 0 1 0 99525487 647168 80 18446744073709551615 134512640 134996440 4294956656 18446744073709551615 134544208 0 0 8392704 0 0 0 0 17 1 0 0
/proc/31589/statm: 158 80 52 118 0 37 0

[startup+0.107281 s]
/proc/loadavg: 0.84 0.94 0.80 3/64 31588
/proc/meminfo: memFree=837416/2055920 swapFree=4183864/4192956
[pid=31588] ppid=31586 vsize=1512 CPUtime=0
/proc/31588/stat : 31588 (SATzilla2007_F) S 31586 31588 31399 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 99525487 1548288 125 18446744073709551615 134512640 135581085 4294956624 18446744073709551615 135217869 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/31588/statm: 378 125 110 260 0 84 0
[pid=31589] ppid=31588 vsize=2120 CPUtime=0.1
/proc/31589/stat : 31589 (march_dl) R 31588 31588 31399 0 -1 4194304 452 0 0 0 10 0 0 0 19 0 1 0 99525487 2170880 443 18446744073709551615 134512640 134996440 4294956656 18446744073709551615 134514060 0 0 8392704 0 0 0 0 17 1 0 0
/proc/31589/statm: 530 443 74 118 0 409 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3632

[startup+0.51533 s]
/proc/loadavg: 0.84 0.94 0.80 3/64 31588
/proc/meminfo: memFree=837416/2055920 swapFree=4183864/4192956
[pid=31588] ppid=31586 vsize=1512 CPUtime=0
/proc/31588/stat : 31588 (SATzilla2007_F) S 31586 31588 31399 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 99525487 1548288 125 18446744073709551615 134512640 135581085 4294956624 18446744073709551615 135217869 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/31588/statm: 378 125 110 260 0 84 0
[pid=31589] ppid=31588 vsize=2120 CPUtime=0.51
/proc/31589/stat : 31589 (march_dl) R 31588 31588 31399 0 -1 4194304 452 0 0 0 51 0 0 0 23 0 1 0 99525487 2170880 443 18446744073709551615 134512640 134996440 4294956656 18446744073709551615 134526923 0 0 8392704 0 0 0 0 17 1 0 0
/proc/31589/statm: 530 443 74 118 0 409 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3632

[startup+1.33544 s]
/proc/loadavg: 0.84 0.94 0.80 2/66 31590
/proc/meminfo: memFree=835416/2055920 swapFree=4183864/4192956
[pid=31588] ppid=31586 vsize=1512 CPUtime=0
/proc/31588/stat : 31588 (SATzilla2007_F) S 31586 31588 31399 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 99525487 1548288 125 18446744073709551615 134512640 135581085 4294956624 18446744073709551615 135217869 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/31588/statm: 378 125 110 260 0 84 0
[pid=31589] ppid=31588 vsize=2776 CPUtime=1.33
/proc/31589/stat : 31589 (march_dl) R 31588 31588 31399 0 -1 4194304 608 0 0 0 133 0 0 0 25 0 1 0 99525487 2842624 599 18446744073709551615 134512640 134996440 4294956656 18446744073709551615 134526956 0 0 8392704 0 0 0 0 17 1 0 0
/proc/31589/statm: 694 599 74 118 0 573 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 4288

[startup+2.97765 s]
/proc/loadavg: 0.85 0.94 0.80 2/66 31590
/proc/meminfo: memFree=834712/2055920 swapFree=4183864/4192956
[pid=31588] ppid=31586 vsize=1512 CPUtime=0
/proc/31588/stat : 31588 (SATzilla2007_F) S 31586 31588 31399 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 99525487 1548288 125 18446744073709551615 134512640 135581085 4294956624 18446744073709551615 135217869 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/31588/statm: 378 125 110 260 0 84 0
[pid=31589] ppid=31588 vsize=3172 CPUtime=2.97
/proc/31589/stat : 31589 (march_dl) R 31588 31588 31399 0 -1 4194304 722 0 0 0 297 0 0 0 25 0 1 0 99525487 3248128 713 18446744073709551615 134512640 134996440 4294956656 18446744073709551615 134571401 0 0 8392704 0 0 0 0 17 1 0 0
/proc/31589/statm: 793 713 74 118 0 672 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 4684

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

[startup+2.97765 s]
/proc/loadavg: 0.85 0.94 0.80 2/66 31590
/proc/meminfo: memFree=834712/2055920 swapFree=4183864/4192956
[pid=31588] ppid=31586 vsize=1512 CPUtime=0
/proc/31588/stat : 31588 (SATzilla2007_F) S 31586 31588 31399 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 99525487 1548288 125 18446744073709551615 134512640 135581085 4294956624 18446744073709551615 135217869 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/31588/statm: 378 125 110 260 0 84 0
[pid=31589] ppid=31588 vsize=3172 CPUtime=2.97
/proc/31589/stat : 31589 (march_dl) R 31588 31588 31399 0 -1 4194304 722 0 0 0 297 0 0 0 25 0 1 0 99525487 3248128 713 18446744073709551615 134512640 134996440 4294956656 18446744073709551615 134571401 0 0 8392704 0 0 0 0 17 1 0 0
/proc/31589/statm: 793 713 74 118 0 672 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 4684

Child status: 10
Real time (s): 3.0108
CPU time (s): 3.00954
CPU user time (s): 3.00454
CPU system time (s): 0.004999
CPU usage (%): 99.9581
Max. virtual memory (cumulated for all children) (KiB): 4684

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.00454
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 899
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= 12
involuntary context switches= 11

runsolver used 0.003999 second user time and 0.010998 second system time

The end

Launcher Data (download as text)

Begin job on node40 on Sat Feb 17 20:41:52 UTC 2007

IDJOB= 291664
IDBENCH= 19820
IDSOLVER= 136
FILE ID= node40/291664-1171744911

PBS_JOBID= 3839470

Free space on /tmp= 66555 MiB

SOLVER NAME= SATzilla FULL
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v80/unif-k5-r21.3-v80-c1704-S256297823-16.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/291664-1171744911/SATzilla2007_F /tmp/evaluation/291664-1171744911/instance-291664-1171744911.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node40/watcher-291664-1171744911 -o ROOT/results/node40/solver-291664-1171744911 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/291664-1171744911/SATzilla2007_F /tmp/evaluation/291664-1171744911/instance-291664-1171744911.cnf            

META MD5SUM SOLVER= cf97f3a2fd0b75b608f79c1ce3d2be4a
MD5SUM BENCH=  98acb22e903e1289d5e4bb5a28958843

RANDOM SEED= 991342780

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node40.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.242
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		: 3000.242
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:        837888 kB
Buffers:         45740 kB
Cached:        1055020 kB
SwapCached:       4240 kB
Active:         757852 kB
Inactive:       353576 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        837888 kB
SwapTotal:     4192956 kB
SwapFree:      4183864 kB
Dirty:           10244 kB
Writeback:           0 kB
Mapped:          15288 kB
Slab:            92664 kB
Committed_AS:   105524 kB
PageTables:       1412 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= 66555 MiB

End job on node40 on Sat Feb 17 20:41:56 UTC 2007