Trace number 1594649

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
SAT07 reference solver: SATzilla CRAFTEDUNSAT 3.04554 3.04555

General information on the benchmark

NameCRAFTED/sgen/unsat/
sgen1-unsat-61-100.cnf
MD5SUM43b8e7efe061e21db6b4c047915ae87c
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.959853
Satisfiable
(Un)Satisfiability was proved
Number of variables61
Number of clauses132
Sum of the clauses size396
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 3132
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

2.99/3.04	c run March_dl for 5 seconds ... 
2.99/3.04	c Bin: Executing march_dl
2.99/3.04	c child exited successfully
2.99/3.04	c march_dl returned code 20.
2.99/3.04	c main():: ***                                   [ march satisfiability solver ]                                   ***
2.99/3.04	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
2.99/3.04	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
2.99/3.04	c main()::
2.99/3.04	c initFormula():: searching for DIMACS p-line....
2.99/3.04	c initFormula():: the DIMACS p-line indicates a CNF of 61 variables and 132 clauses.
2.99/3.04	c parseCNF():: parsing....
2.99/3.04	c parseCNF():: the CNF contains 0 unary clauses.
2.99/3.04	c runParser():: parsing was successful, warming up engines...
2.99/3.04	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
2.99/3.04	c preprocessing fase I completed:: there are now 61 free variables and 132 clauses.
2.99/3.04	c shorten_equivalence(): average equivalence length reduced from nan to nan
2.99/3.04	c doublelook_init():: 90% succes rate goal.
2.99/3.04	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
2.99/3.04	c lessRedundantTransformation():: nothing to be done.
2.99/3.04	c transformTo3SAT():: you gave me 61 variables and 132 clauses.
2.99/3.04	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
2.99/3.04	c transformTo3SAT():: CHAINPLUS defined.
2.99/3.04	c transformTo3SAT():: I will add 0 variables and 0 clauses!
2.99/3.04	c transformTo3SAT():: the transformation yielded 61 variabels and 132 clauses.
2.99/3.04	c main():: clause / variable ratio: ( 132 / 61 ) = 2.16
2.99/3.04	c doublelook_init():: 90% succes rate goal.
2.99/3.04	c root_subsume():: 0 ternary clauses were subsumed, nrofceq = 0
2.99/3.04	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
2.99/3.04	c check_ternary_clause_density :: low
2.99/3.04	c root full lookahead
2.99/3.04	c freevars: 61, independend: 61, ternary clauses: 132 
2.99/3.04	c main():: all systems go!
2.99/3.04	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 |****************************************************************
c |****************************************************************
2.99/3.04	c
2.99/3.04	c main():: nodeCount: 110563
2.99/3.04	c main():: dead ends in main: 773
2.99/3.04	c main():: lookAheadCount: 4061330
2.99/3.04	c main():: unitResolveCount: 384605
2.99/3.04	c main():: time=3.040000
2.99/3.04	c main():: necessary_assignments: 1639
2.99/3.04	c main():: bin_sat: 0, bin_unsat 0
2.99/3.04	c main():: doublelook: #: 307, succes #: 242
2.99/3.04	c main():: doublelook: succesrate: 78.827, threshold: 0.357 * nrofvars
2.99/3.04	s UNSATISFIABLE
2.99/3.04	c SATZILLA_TIME=3.040000

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1594649-1239279422/watcher-1594649-1239279422 -o /tmp/evaluation-result-1594649-1239279422/solver-1594649-1239279422 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2007_C HOME/instance-1594649-1239279422.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: 0.00 0.00 0.00 3/70 17568
/proc/meminfo: memFree=1317992/2055920 swapFree=4174076/4192956
[pid=17568] ppid=17566 vsize=1440 CPUtime=0
/proc/17568/stat : 17568 (SATzilla2007_C) S 17566 17568 17531 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1200607240 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17568/statm: 360 110 95 260 0 84 0
[pid=17569] ppid=17568 vsize=632 CPUtime=0
/proc/17569/stat : 17569 (march_dl) R 17568 17568 17531 0 -1 4194304 103 0 0 0 0 0 0 0 19 0 1 0 1200607240 647168 97 1992294400 134512640 134996440 4294956256 18446744073709551615 134652876 0 0 8392704 0 0 0 0 17 0 0 0
/proc/17569/statm: 158 97 73 118 0 37 0

[startup+0.023347 s]
/proc/loadavg: 0.00 0.00 0.00 3/70 17568
/proc/meminfo: memFree=1317992/2055920 swapFree=4174076/4192956
[pid=17568] ppid=17566 vsize=1440 CPUtime=0
/proc/17568/stat : 17568 (SATzilla2007_C) S 17566 17568 17531 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1200607240 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17568/statm: 360 110 95 260 0 84 0
[pid=17569] ppid=17568 vsize=632 CPUtime=0.02
/proc/17569/stat : 17569 (march_dl) R 17568 17568 17531 0 -1 4194304 105 0 0 0 2 0 0 0 19 0 1 0 1200607240 647168 99 1992294400 134512640 134996440 4294956256 18446744073709551615 134617565 0 0 8392704 0 0 0 0 17 0 0 0
/proc/17569/statm: 158 99 73 118 0 37 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2072

[startup+0.101354 s]
/proc/loadavg: 0.00 0.00 0.00 3/70 17568
/proc/meminfo: memFree=1317992/2055920 swapFree=4174076/4192956
[pid=17568] ppid=17566 vsize=1440 CPUtime=0
/proc/17568/stat : 17568 (SATzilla2007_C) S 17566 17568 17531 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1200607240 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17568/statm: 360 110 95 260 0 84 0
[pid=17569] ppid=17568 vsize=632 CPUtime=0.09
/proc/17569/stat : 17569 (march_dl) R 17568 17568 17531 0 -1 4194304 106 0 0 0 9 0 0 0 20 0 1 0 1200607240 647168 100 1992294400 134512640 134996440 4294956256 18446744073709551615 134533056 0 0 8392704 0 0 0 0 17 0 0 0
/proc/17569/statm: 158 100 73 118 0 37 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2072

[startup+0.301377 s]
/proc/loadavg: 0.00 0.00 0.00 3/70 17568
/proc/meminfo: memFree=1317992/2055920 swapFree=4174076/4192956
[pid=17568] ppid=17566 vsize=1440 CPUtime=0
/proc/17568/stat : 17568 (SATzilla2007_C) S 17566 17568 17531 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1200607240 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17568/statm: 360 110 95 260 0 84 0
[pid=17569] ppid=17568 vsize=632 CPUtime=0.29
/proc/17569/stat : 17569 (march_dl) R 17568 17568 17531 0 -1 4194304 107 0 0 0 29 0 0 0 21 0 1 0 1200607240 647168 101 1992294400 134512640 134996440 4294956256 18446744073709551615 134537794 0 0 8392704 0 0 0 0 17 0 0 0
/proc/17569/statm: 158 101 73 118 0 37 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2072

[startup+0.701423 s]
/proc/loadavg: 0.00 0.00 0.00 3/70 17568
/proc/meminfo: memFree=1317992/2055920 swapFree=4174076/4192956
[pid=17568] ppid=17566 vsize=1440 CPUtime=0
/proc/17568/stat : 17568 (SATzilla2007_C) S 17566 17568 17531 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1200607240 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17568/statm: 360 110 95 260 0 84 0
[pid=17569] ppid=17568 vsize=632 CPUtime=0.69
/proc/17569/stat : 17569 (march_dl) R 17568 17568 17531 0 -1 4194304 107 0 0 0 69 0 0 0 25 0 1 0 1200607240 647168 101 1992294400 134512640 134996440 4294956256 18446744073709551615 134532928 0 0 8392704 0 0 0 0 17 0 0 0
/proc/17569/statm: 158 101 73 118 0 37 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2072

[startup+1.50152 s]
/proc/loadavg: 0.00 0.00 0.00 2/72 17570
/proc/meminfo: memFree=1317720/2055920 swapFree=4174076/4192956
[pid=17568] ppid=17566 vsize=1440 CPUtime=0
/proc/17568/stat : 17568 (SATzilla2007_C) S 17566 17568 17531 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1200607240 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17568/statm: 360 110 95 260 0 84 0
[pid=17569] ppid=17568 vsize=632 CPUtime=1.49
/proc/17569/stat : 17569 (march_dl) R 17568 17568 17531 0 -1 4194304 108 0 0 0 149 0 0 0 25 0 1 0 1200607240 647168 102 1992294400 134512640 134996440 4294956256 18446744073709551615 134567191 0 0 8392704 0 0 0 0 17 0 0 0
/proc/17569/statm: 158 102 73 118 0 37 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2072

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

[startup+2.30161 s]
/proc/loadavg: 0.00 0.00 0.00 2/72 17570
/proc/meminfo: memFree=1317592/2055920 swapFree=4174076/4192956
[pid=17568] ppid=17566 vsize=1440 CPUtime=0
/proc/17568/stat : 17568 (SATzilla2007_C) S 17566 17568 17531 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1200607240 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17568/statm: 360 110 95 260 0 84 0
[pid=17569] ppid=17568 vsize=632 CPUtime=2.29
/proc/17569/stat : 17569 (march_dl) R 17568 17568 17531 0 -1 4194304 108 0 0 0 229 0 0 0 25 0 1 0 1200607240 647168 102 1992294400 134512640 134996440 4294956256 18446744073709551615 134537766 0 0 8392704 0 0 0 0 17 0 0 0
/proc/17569/statm: 158 102 73 118 0 37 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 2072

[startup+2.70165 s]
/proc/loadavg: 0.00 0.00 0.00 2/72 17570
/proc/meminfo: memFree=1317592/2055920 swapFree=4174076/4192956
[pid=17568] ppid=17566 vsize=1440 CPUtime=0
/proc/17568/stat : 17568 (SATzilla2007_C) S 17566 17568 17531 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1200607240 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17568/statm: 360 110 95 260 0 84 0
[pid=17569] ppid=17568 vsize=632 CPUtime=2.69
/proc/17569/stat : 17569 (march_dl) R 17568 17568 17531 0 -1 4194304 108 0 0 0 269 0 0 0 25 0 1 0 1200607240 647168 102 1992294400 134512640 134996440 4294956256 18446744073709551615 134551650 0 0 8392704 0 0 0 0 17 0 0 0
/proc/17569/statm: 158 102 73 118 0 37 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 2072

[startup+2.90168 s]
/proc/loadavg: 0.00 0.00 0.00 2/72 17570
/proc/meminfo: memFree=1317592/2055920 swapFree=4174076/4192956
[pid=17568] ppid=17566 vsize=1440 CPUtime=0
/proc/17568/stat : 17568 (SATzilla2007_C) S 17566 17568 17531 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1200607240 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17568/statm: 360 110 95 260 0 84 0
[pid=17569] ppid=17568 vsize=632 CPUtime=2.89
/proc/17569/stat : 17569 (march_dl) R 17568 17568 17531 0 -1 4194304 108 0 0 0 289 0 0 0 25 0 1 0 1200607240 647168 102 1992294400 134512640 134996440 4294956256 18446744073709551615 134528947 0 0 8392704 0 0 0 0 17 0 0 0
/proc/17569/statm: 158 102 73 118 0 37 0
Current children cumulated CPU time (s) 2.89
Current children cumulated vsize (KiB) 2072

[startup+3.00169 s]
/proc/loadavg: 0.00 0.00 0.00 2/72 17570
/proc/meminfo: memFree=1317592/2055920 swapFree=4174076/4192956
[pid=17568] ppid=17566 vsize=1440 CPUtime=0
/proc/17568/stat : 17568 (SATzilla2007_C) S 17566 17568 17531 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 1200607240 1474560 110 1992294400 134512640 135579813 4294956224 18446744073709551615 135216413 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/17568/statm: 360 110 95 260 0 84 0
[pid=17569] ppid=17568 vsize=632 CPUtime=2.99
/proc/17569/stat : 17569 (march_dl) R 17568 17568 17531 0 -1 4194304 108 0 0 0 299 0 0 0 25 0 1 0 1200607240 647168 102 1992294400 134512640 134996440 4294956256 18446744073709551615 134566318 0 0 8392704 0 0 0 0 17 0 0 0
/proc/17569/statm: 158 102 73 118 0 37 0
Current children cumulated CPU time (s) 2.99
Current children cumulated vsize (KiB) 2072

Child status: 20
Real time (s): 3.04555
CPU time (s): 3.04554
CPU user time (s): 3.04154
CPU system time (s): 0.003999
CPU usage (%): 99.9994
Max. virtual memory (cumulated for all children) (KiB): 2072

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.04154
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 266
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= 4
involuntary context switches= 14

runsolver used 0.004999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node74 at 2009-04-09 14:17:02
IDJOB=1594649
IDBENCH=71108
IDSOLVER=558
FILE ID=node74/1594649-1239279422
PBS_JOBID= 9115387
Free space on /tmp= 103200 MiB

SOLVER NAME= SAT07 reference solver: SATzilla CRAFTED
BENCH NAME= SAT09/CRAFTED/sgen/unsat/sgen1-unsat-61-100.cnf
COMMAND LINE= HOME/SATzilla2007_C BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1594649-1239279422/watcher-1594649-1239279422 -o /tmp/evaluation-result-1594649-1239279422/solver-1594649-1239279422 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2007_C HOME/instance-1594649-1239279422.cnf            

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

MD5SUM BENCH= 43b8e7efe061e21db6b4c047915ae87c
RANDOM SEED=1213386596

node74.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		: 3000.236
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		: 3000.236
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:       1318544 kB
Buffers:         69984 kB
Cached:         581660 kB
SwapCached:       7956 kB
Active:          32164 kB
Inactive:       628800 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1318544 kB
SwapTotal:     4192956 kB
SwapFree:      4174076 kB
Dirty:            8380 kB
Writeback:           0 kB
Mapped:          14936 kB
Slab:            61732 kB
Committed_AS:  2954100 kB
PageTables:       1852 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= 103188 MiB
End job on node74 at 2009-04-09 14:17:05