Trace number 423439

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 RANDOMSAT 1.13083 1.13345

General information on the benchmark

Namerandom/OnTreshold/5SAT/v70/
unif-k5-r21.3-v70-c1491-S1416418480-05.SAT.shuffled.cnf
MD5SUM10cdf0d13f9ca6cd8c317abc593ddad7
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007997
Satisfiable
(Un)Satisfiability was proved
Number of variables70
Number of clauses1491
Sum of the clauses size7455
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 51491
Number of clauses of size over 50

Solver Data (download as text)

1.10/1.13	c run March_dl for 5 seconds ... 
1.10/1.13	c Bin: Executing march_dl
1.10/1.13	c child exited successfully
1.10/1.13	c march_dl returned code 10.
1.10/1.13	c main():: ***                                   [ march satisfiability solver ]                                   ***
1.10/1.13	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
1.10/1.13	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
1.10/1.13	c main()::
1.10/1.13	c initFormula():: searching for DIMACS p-line....
1.10/1.13	c initFormula():: the DIMACS p-line indicates a CNF of 70 variables and 1491 clauses.
1.10/1.13	c parseCNF():: parsing....
1.10/1.13	c parseCNF():: the CNF contains 0 unary clauses.
1.10/1.13	c runParser():: parsing was successful, warming up engines...
1.10/1.13	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
1.10/1.13	c preprocessing fase I completed:: there are now 70 free variables and 1491 clauses.
1.10/1.13	c shorten_equivalence(): average equivalence length reduced from nan to nan
1.10/1.13	c doublelook_init():: 90% succes rate goal.
1.10/1.13	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
1.10/1.13	c lessRedundantTransformation():: CHAINPLUS defined.
1.10/1.13	c lessRedundantTransformation():: the transformation yielded 838 variables and 3795 clauses.
1.10/1.13	c transformTo3SAT():: you gave me 838 variables and 3795 clauses.
1.10/1.13	c transformTo3SAT():: by the way, the maximal clause length before transformation was 5.
1.10/1.13	c transformTo3SAT():: CHAINPLUS defined.
1.10/1.13	c transformTo3SAT():: I will add 609 variables and 1827 clauses!
1.10/1.13	c transformTo3SAT():: the transformation yielded 1447 variabels and 3795 clauses.
1.10/1.13	c main():: clause / variable ratio: ( 5622 / 1447 ) = 3.89
1.10/1.13	c doublelook_init():: 90% succes rate goal.
1.10/1.13	c AddTernaryResolvents(): ternary clauses increased from 5622 to 5858
1.10/1.13	c root_subsume():: 2 ternary clauses were subsumed, nrofceq = 2
1.10/1.13	c find_and_remove_tautogolies():: found and removed 2 tautologies
1.10/1.13	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 2
1.10/1.13	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
1.10/1.13	c check_ternary_clause_density :: low
1.10/1.13	c root full lookahead
1.10/1.13	c freevars: 1445, independend: 1445, ternary clauses: 3100 
1.10/1.13	c main():: all systems go!
1.10/1.13	c |----------------------------------------------------------------|
c |
1.10/1.13	c
1.10/1.13	c main():: nodeCount: 381
1.10/1.13	c main():: dead ends in main: 8
1.10/1.13	c main():: lookAheadCount: 57862
1.10/1.13	c main():: unitResolveCount: 23615
1.10/1.13	c main():: time=1.120000
1.10/1.13	c main():: necessary_assignments: 984
1.10/1.13	c main():: bin_sat: 0, bin_unsat 0
1.10/1.13	c main():: doublelook: #: 586, succes #: 355
1.10/1.13	c main():: doublelook: succesrate: 60.580, threshold: 0.077 * nrofvars
1.10/1.13	c main():: SOLUTION VERIFIED :-)
1.10/1.13	s SATISFIABLE
1.10/1.13	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 0
1.10/1.13	c SATZILLA_TIME=1.120000

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node50/watcher-423439-1177826566 -o ROOT/results/node50/solver-423439-1177826566 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/423439-1177826566/SATzilla2007_R /tmp/evaluation/423439-1177826566/instance-423439-1177826566.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.88 0.92 0.97 3/64 14326
/proc/meminfo: memFree=1459768/2055920 swapFree=4183624/4192956
[pid=14326] ppid=14324 vsize=1440 CPUtime=0
/proc/14326/stat : 14326 (SATzilla2007_R) R 14324 14326 13858 0 -1 4194304 126 0 0 0 0 0 0 0 18 0 1 0 137501761 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216547 0 0 4096 0 0 0 0 17 1 0 0
/proc/14326/statm: 360 110 95 260 0 84 0
[pid=14327] ppid=14326 vsize=632 CPUtime=0
/proc/14327/stat : 14327 (march_dl) R 14326 14326 13858 0 -1 4194304 93 0 0 0 0 0 0 0 18 0 1 0 137501761 647168 87 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134652876 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14327/statm: 158 87 52 118 0 37 0

[startup+0.0281171 s]
/proc/loadavg: 0.88 0.92 0.97 3/64 14326
/proc/meminfo: memFree=1459768/2055920 swapFree=4183624/4192956
[pid=14326] ppid=14324 vsize=1440 CPUtime=0
/proc/14326/stat : 14326 (SATzilla2007_R) S 14324 14326 13858 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 137501761 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14326/statm: 360 110 95 260 0 84 0
[pid=14327] ppid=14326 vsize=884 CPUtime=0.02
/proc/14327/stat : 14327 (march_dl) R 14326 14326 13858 0 -1 4194304 157 0 0 0 2 0 0 0 19 0 1 0 137501761 905216 149 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134583392 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14327/statm: 221 150 67 118 0 100 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2324

[startup+0.101123 s]
/proc/loadavg: 0.88 0.92 0.97 3/64 14326
/proc/meminfo: memFree=1459768/2055920 swapFree=4183624/4192956
[pid=14326] ppid=14324 vsize=1440 CPUtime=0
/proc/14326/stat : 14326 (SATzilla2007_R) S 14324 14326 13858 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 137501761 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14326/statm: 360 110 95 260 0 84 0
[pid=14327] ppid=14326 vsize=1820 CPUtime=0.09
/proc/14327/stat : 14327 (march_dl) R 14326 14326 13858 0 -1 4194304 395 0 0 0 9 0 0 0 19 0 1 0 137501761 1863680 387 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134514035 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14327/statm: 455 387 74 118 0 334 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3260

[startup+0.30114 s]
/proc/loadavg: 0.88 0.92 0.97 3/64 14326
/proc/meminfo: memFree=1459768/2055920 swapFree=4183624/4192956
[pid=14326] ppid=14324 vsize=1440 CPUtime=0
/proc/14326/stat : 14326 (SATzilla2007_R) S 14324 14326 13858 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 137501761 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14326/statm: 360 110 95 260 0 84 0
[pid=14327] ppid=14326 vsize=1820 CPUtime=0.29
/proc/14327/stat : 14327 (march_dl) R 14326 14326 13858 0 -1 4194304 395 0 0 0 29 0 0 0 21 0 1 0 137501761 1863680 387 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134526812 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14327/statm: 455 387 74 118 0 334 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3260

[startup+0.701175 s]
/proc/loadavg: 0.88 0.92 0.97 3/64 14326
/proc/meminfo: memFree=1459768/2055920 swapFree=4183624/4192956
[pid=14326] ppid=14324 vsize=1440 CPUtime=0
/proc/14326/stat : 14326 (SATzilla2007_R) S 14324 14326 13858 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 137501761 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14326/statm: 360 110 95 260 0 84 0
[pid=14327] ppid=14326 vsize=1996 CPUtime=0.69
/proc/14327/stat : 14327 (march_dl) R 14326 14326 13858 0 -1 4194304 403 0 0 0 69 0 0 0 24 0 1 0 137501761 2043904 395 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134526996 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14327/statm: 499 395 74 118 0 378 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3436

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

[startup+1.10521 s]
/proc/loadavg: 0.88 0.92 0.97 2/66 14328
/proc/meminfo: memFree=1457896/2055920 swapFree=4183624/4192956
[pid=14326] ppid=14324 vsize=1440 CPUtime=0
/proc/14326/stat : 14326 (SATzilla2007_R) S 14324 14326 13858 0 -1 4194304 127 0 0 0 0 0 0 0 18 0 1 0 137501761 1474560 110 18446744073709551615 134512640 135579813 4294956656 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/14326/statm: 360 110 95 260 0 84 0
[pid=14327] ppid=14326 vsize=2392 CPUtime=1.1
/proc/14327/stat : 14327 (march_dl) R 14326 14326 13858 0 -1 4194304 539 0 0 0 110 0 0 0 25 0 1 0 137501761 2449408 531 18446744073709551615 134512640 134996440 4294956688 18446744073709551615 134514202 0 0 8392704 0 0 0 0 17 1 0 0
/proc/14327/statm: 598 531 74 118 0 477 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 3832

Child status: 10
Real time (s): 1.13345
CPU time (s): 1.13083
CPU user time (s): 1.12883
CPU system time (s): 0.001999
CPU usage (%): 99.7689
Max. virtual memory (cumulated for all children) (KiB): 3832

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.12883
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 699
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= 4

runsolver used 0.002999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node50 on Sun Apr 29 06:02:46 UTC 2007

IDJOB= 423439
IDBENCH= 19833
IDSOLVER= 191
FILE ID= node50/423439-1177826566

PBS_JOBID= 4718269

Free space on /tmp= 66556 MiB

SOLVER NAME= SATzilla RANDOM
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v70/unif-k5-r21.3-v70-c1491-S1416418480-05.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/423439-1177826566/SATzilla2007_R /tmp/evaluation/423439-1177826566/instance-423439-1177826566.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node50/watcher-423439-1177826566 -o ROOT/results/node50/solver-423439-1177826566 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/423439-1177826566/SATzilla2007_R /tmp/evaluation/423439-1177826566/instance-423439-1177826566.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  10cdf0d13f9ca6cd8c317abc593ddad7

RANDOM SEED= 634461050

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node50.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		: 3000.232
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		: 3000.232
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:       1460240 kB
Buffers:         51000 kB
Cached:         466008 kB
SwapCached:       4620 kB
Active:         308400 kB
Inactive:       219624 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1460240 kB
SwapTotal:     4192956 kB
SwapFree:      4183624 kB
Dirty:            8504 kB
Writeback:           0 kB
Mapped:          15568 kB
Slab:            53600 kB
Committed_AS:  3043004 kB
PageTables:       1460 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= 66556 MiB

End job on node50 on Sun Apr 29 06:02:47 UTC 2007