Trace number 310482

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 CRAFTEDUNSAT 4.42333 4.42754

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S779175761-20-UNSAT.cnf
MD5SUMe4a16dbebaf749785d32ea7331a934fc
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.09138
Satisfiable
(Un)Satisfiability was proved
Number of variables630
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

4.40/4.42	c run March_dl for 5 seconds ... 
4.40/4.42	c Bin: Executing march_dl
4.40/4.42	c child exited successfully
4.40/4.42	c march_dl returned code 20.
4.40/4.42	c main():: ***                                   [ march satisfiability solver ]                                   ***
4.40/4.42	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
4.40/4.42	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
4.40/4.42	c main()::
4.40/4.42	c initFormula():: searching for DIMACS p-line....
4.40/4.42	c initFormula():: the DIMACS p-line indicates a CNF of 630 variables and 2280 clauses.
4.40/4.42	c parseCNF():: parsing....
4.40/4.42	c parseCNF():: the CNF contains 0 unary clauses.
4.40/4.42	c runParser():: parsing was successful, warming up engines...
4.40/4.42	c simplify_formula():: removed 0 tautological, 10 satisfied and 0 duplicate clauses
4.40/4.42	c preprocessing fase I completed:: there are now 628 free variables and 2270 clauses.
4.40/4.42	c shorten_equivalence(): average equivalence length reduced from nan to nan
4.40/4.42	c doublelook_init():: 90% succes rate goal.
4.40/4.42	c root_subsume():: 4 ternary clauses were subsumed, nrofceq = 2
4.40/4.42	c find_and_remove_tautogolies():: found and removed 2 tautologies
4.40/4.42	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 3
4.40/4.42	c find_and_remove_tautogolies():: found and removed 1 tautologies
4.40/4.42	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 3
4.40/4.42	c lessRedundantTransformation():: nothing to be done.
4.40/4.42	c transformTo3SAT():: you gave me 630 variables and 2276 clauses.
4.40/4.42	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
4.40/4.42	c transformTo3SAT():: CHAINPLUS defined.
4.40/4.42	c transformTo3SAT():: I will add 0 variables and 0 clauses!
4.40/4.42	c transformTo3SAT():: the transformation yielded 630 variabels and 2276 clauses.
4.40/4.42	c main():: clause / variable ratio: ( 2276 / 630 ) = 3.61
4.40/4.42	c doublelook_init():: 90% succes rate goal.
4.40/4.42	c AddTernaryResolvents(): ternary clauses increased from 2276 to 2328
4.40/4.42	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 3
4.40/4.42	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
4.40/4.42	c check_ternary_clause_density :: high
4.40/4.42	c root full lookahead
4.40/4.42	c freevars: 625, independend: 625, ternary clauses: 2090 
4.40/4.42	c main():: all systems go!
4.40/4.42	c |----------------------------------------------------------------|
c |*
c |**
c |***
c |****
c |*****
c |******
c |*******
c |********
c |*********
c |**********
c |***********
c |************
c |*************
c |**************
c |***************
c |****************
c |*****************
c |******************
c |*******************
c |********************
c |*********************
c |**********************
c |***********************
c |************************
c |*************************
c |**************************
c |***************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |***********************************
c |************************************
c |*************************************
c |**************************************
c |***************************************
c |****************************************
c |*****************************************
c |******************************************
c |*******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |***************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |****************************************************************
c |****************************************************************
4.40/4.42	c
4.40/4.42	c main():: nodeCount: 8276
4.40/4.42	c main():: dead ends in main: 67
4.40/4.42	c main():: lookAheadCount: 1045381
4.40/4.42	c main():: unitResolveCount: 140823
4.40/4.42	c main():: time=4.420000
4.40/4.42	c main():: necessary_assignments: 3584
4.40/4.42	c main():: bin_sat: 0, bin_unsat 0
4.40/4.42	c main():: doublelook: #: 18483, succes #: 16635
4.40/4.42	c main():: doublelook: succesrate: 90.002, threshold: 0.154 * nrofvars
4.40/4.42	s UNSATISFIABLE
4.40/4.42	c SATZILLA_TIME=4.420000

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node60/watcher-310482-1172559975 -o ROOT/results/node60/solver-310482-1172559975 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310482-1172559975/SATzilla2007_C /tmp/evaluation/310482-1172559975/instance-310482-1172559975.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: 1.09 1.30 1.35 3/64 2336
/proc/meminfo: memFree=1888984/2055920 swapFree=4179680/4192956
[pid=2336] ppid=2334 vsize=1440 CPUtime=0
/proc/2336/stat : 2336 (SATzilla2007_C) S 2334 2336 1090 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 275954318 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/2336/statm: 360 110 95 260 0 84 0
[pid=2337] ppid=2336 vsize=768 CPUtime=0
/proc/2337/stat : 2337 (march_dl) R 2336 2336 1090 0 -1 4194304 100 0 0 0 0 0 0 0 20 0 1 0 275954318 786432 94 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134544208 0 0 8392704 0 0 0 0 17 1 0 0
/proc/2337/statm: 192 94 52 118 0 71 0

[startup+0.107581 s]
/proc/loadavg: 1.09 1.30 1.35 3/64 2336
/proc/meminfo: memFree=1888984/2055920 swapFree=4179680/4192956
[pid=2336] ppid=2334 vsize=1440 CPUtime=0
/proc/2336/stat : 2336 (SATzilla2007_C) S 2334 2336 1090 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 275954318 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/2336/statm: 360 110 95 260 0 84 0
[pid=2337] ppid=2336 vsize=1396 CPUtime=0.1
/proc/2337/stat : 2337 (march_dl) R 2336 2336 1090 0 -1 4194304 288 0 0 0 10 0 0 0 20 0 1 0 275954318 1429504 280 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134527835 0 0 8392704 0 0 0 0 17 1 0 0
/proc/2337/statm: 349 280 74 118 0 228 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2836

[startup+0.519653 s]
/proc/loadavg: 1.09 1.30 1.35 3/64 2336
/proc/meminfo: memFree=1888984/2055920 swapFree=4179680/4192956
[pid=2336] ppid=2334 vsize=1440 CPUtime=0
/proc/2336/stat : 2336 (SATzilla2007_C) S 2334 2336 1090 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 275954318 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/2336/statm: 360 110 95 260 0 84 0
[pid=2337] ppid=2336 vsize=1528 CPUtime=0.51
/proc/2337/stat : 2337 (march_dl) R 2336 2336 1090 0 -1 4194304 303 0 0 0 51 0 0 0 23 0 1 0 275954318 1564672 295 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134514077 0 0 8392704 0 0 0 0 17 1 0 0
/proc/2337/statm: 382 295 74 118 0 261 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2968

[startup+1.3408 s]
/proc/loadavg: 1.09 1.30 1.35 2/66 2338
/proc/meminfo: memFree=1887944/2055920 swapFree=4179680/4192956
[pid=2336] ppid=2334 vsize=1440 CPUtime=0
/proc/2336/stat : 2336 (SATzilla2007_C) S 2334 2336 1090 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 275954318 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/2336/statm: 360 110 95 260 0 84 0
[pid=2337] ppid=2336 vsize=1528 CPUtime=1.33
/proc/2337/stat : 2337 (march_dl) R 2336 2336 1090 0 -1 4194304 315 0 0 0 133 0 0 0 25 0 1 0 275954318 1564672 307 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134514019 0 0 8392704 0 0 0 0 17 1 0 0
/proc/2337/statm: 382 307 74 118 0 261 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2968

[startup+2.97709 s]
/proc/loadavg: 1.09 1.30 1.35 2/66 2338
/proc/meminfo: memFree=1887816/2055920 swapFree=4179680/4192956
[pid=2336] ppid=2334 vsize=1440 CPUtime=0
/proc/2336/stat : 2336 (SATzilla2007_C) S 2334 2336 1090 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 275954318 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/2336/statm: 360 110 95 260 0 84 0
[pid=2337] ppid=2336 vsize=1528 CPUtime=2.97
/proc/2337/stat : 2337 (march_dl) R 2336 2336 1090 0 -1 4194304 326 0 0 0 297 0 0 0 25 0 1 0 275954318 1564672 318 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134532769 0 0 8392704 0 0 0 0 17 1 0 0
/proc/2337/statm: 382 318 74 118 0 261 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 2968

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

[startup+3.28315 s]
/proc/loadavg: 1.09 1.30 1.35 2/66 2338
/proc/meminfo: memFree=1887816/2055920 swapFree=4179680/4192956
[pid=2336] ppid=2334 vsize=1440 CPUtime=0
/proc/2336/stat : 2336 (SATzilla2007_C) S 2334 2336 1090 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 275954318 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/2336/statm: 360 110 95 260 0 84 0
[pid=2337] ppid=2336 vsize=1528 CPUtime=3.27
/proc/2337/stat : 2337 (march_dl) R 2336 2336 1090 0 -1 4194304 327 0 0 0 327 0 0 0 25 0 1 0 275954318 1564672 319 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134514087 0 0 8392704 0 0 0 0 17 1 0 0
/proc/2337/statm: 382 319 74 118 0 261 0
Current children cumulated CPU time (s) 3.27
Current children cumulated vsize (KiB) 2968

[startup+4.10329 s]
/proc/loadavg: 1.08 1.29 1.35 2/66 2338
/proc/meminfo: memFree=1887560/2055920 swapFree=4179680/4192956
[pid=2336] ppid=2334 vsize=1440 CPUtime=0
/proc/2336/stat : 2336 (SATzilla2007_C) S 2334 2336 1090 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 275954318 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/2336/statm: 360 110 95 260 0 84 0
[pid=2337] ppid=2336 vsize=1528 CPUtime=4.09
/proc/2337/stat : 2337 (march_dl) R 2336 2336 1090 0 -1 4194304 330 0 0 0 409 0 0 0 25 0 1 0 275954318 1564672 322 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134533060 0 0 8392704 0 0 0 0 17 1 0 0
/proc/2337/statm: 382 322 74 118 0 261 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 2968

[startup+4.30733 s]
/proc/loadavg: 1.08 1.29 1.35 2/66 2338
/proc/meminfo: memFree=1887560/2055920 swapFree=4179680/4192956
[pid=2336] ppid=2334 vsize=1440 CPUtime=0
/proc/2336/stat : 2336 (SATzilla2007_C) S 2334 2336 1090 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 275954318 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/2336/statm: 360 110 95 260 0 84 0
[pid=2337] ppid=2336 vsize=1528 CPUtime=4.3
/proc/2337/stat : 2337 (march_dl) R 2336 2336 1090 0 -1 4194304 331 0 0 0 430 0 0 0 25 0 1 0 275954318 1564672 323 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134526917 0 0 8392704 0 0 0 0 17 1 0 0
/proc/2337/statm: 382 323 74 118 0 261 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 2968

[startup+4.40935 s]
/proc/loadavg: 1.08 1.29 1.35 2/66 2338
/proc/meminfo: memFree=1887560/2055920 swapFree=4179680/4192956
[pid=2336] ppid=2334 vsize=1440 CPUtime=0
/proc/2336/stat : 2336 (SATzilla2007_C) S 2334 2336 1090 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 275954318 1474560 110 18446744073709551615 134512640 135579813 4294956704 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/2336/statm: 360 110 95 260 0 84 0
[pid=2337] ppid=2336 vsize=1528 CPUtime=4.4
/proc/2337/stat : 2337 (march_dl) R 2336 2336 1090 0 -1 4194304 332 0 0 0 440 0 0 0 25 0 1 0 275954318 1564672 324 18446744073709551615 134512640 134996440 4294956736 18446744073709551615 134527810 0 0 8392704 0 0 0 0 17 1 0 0
/proc/2337/statm: 382 324 74 118 0 261 0
Current children cumulated CPU time (s) 4.4
Current children cumulated vsize (KiB) 2968

Child status: 20
Real time (s): 4.42754
CPU time (s): 4.42333
CPU user time (s): 4.42033
CPU system time (s): 0.002999
CPU usage (%): 99.9049
Max. virtual memory (cumulated for all children) (KiB): 2968

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.42033
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 491
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= 14
involuntary context switches= 5

runsolver used 0.004999 second user time and 0.018997 second system time

The end

Launcher Data (download as text)

Begin job on node60 on Tue Feb 27 07:06:15 UTC 2007

IDJOB= 310482
IDBENCH= 20287
IDSOLVER= 135
FILE ID= node60/310482-1172559975

PBS_JOBID= 3971858

Free space on /tmp= 66548 MiB

SOLVER NAME= SATzilla CRAFTED
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S779175761-20-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310482-1172559975/SATzilla2007_C /tmp/evaluation/310482-1172559975/instance-310482-1172559975.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node60/watcher-310482-1172559975 -o ROOT/results/node60/solver-310482-1172559975 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310482-1172559975/SATzilla2007_C /tmp/evaluation/310482-1172559975/instance-310482-1172559975.cnf            

META MD5SUM SOLVER= a1f00d13cbb558b34a83b365ff80fcc3
MD5SUM BENCH=  e4a16dbebaf749785d32ea7331a934fc

RANDOM SEED= 197974735

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node60.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		: 3000.283
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		: 3000.283
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:       1889456 kB
Buffers:         18356 kB
Cached:          96668 kB
SwapCached:       7512 kB
Active:          62928 kB
Inactive:        65780 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1889456 kB
SwapTotal:     4192956 kB
SwapFree:      4179680 kB
Dirty:            8568 kB
Writeback:           0 kB
Mapped:          15380 kB
Slab:            23828 kB
Committed_AS:   797952 kB
PageTables:       1464 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= 66548 MiB

End job on node60 on Tue Feb 27 07:06:19 UTC 2007